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16061642135648 = 25539470307863
BaseRepresentation
bin1110100110111010010001…
…1110010101100001100000
32002212110220110022202002122
43221232210132111201200
54101123220341320043
654054341101003412
73245262315354614
oct351564436254140
962773813282078
1016061642135648
11513278229432a
121974a2b553568
138c67b6211ba5
143d755d913344
151ccc008a2368
hexe9ba4795860

16061642135648 has 24 divisors (see below), whose sum is σ = 32217987353328. Its totient is φ = 7879296141184.

The previous prime is 16061642135647. The next prime is 16061642135723. The reversal of 16061642135648 is 84653124616061.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 16061642135648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16061642135647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4735152236 + ... + 4735155627.

It is an arithmetic number, because the mean of its divisors is an integer number (1342416139722).

Almost surely, 216061642135648 is an apocalyptic number.

It is an amenable number.

16061642135648 is an abundant number, since it is smaller than the sum of its proper divisors (16156345217680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16061642135648 is an equidigital number, since it uses as much as digits as its factorization.

16061642135648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9470307926 (or 9470307918 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 16061642135648 in words is "sixteen trillion, sixty-one billion, six hundred forty-two million, one hundred thirty-five thousand, six hundred forty-eight".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696 9470307863 18940615726 37881231452 75762462904 151524925808 303049851616 501926316739 1003852633478 2007705266956 4015410533912 8030821067824 16061642135648