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115161660010660 = 2258126817085293
BaseRepresentation
bin11010001011110100101001…
…110101100011000010100100
3120002202100101002111100001111
4122023310221311203002210
5110043302034430320120
61044532311455234404
733154104201635314
oct3213645165430244
9502670332440044
10115161660010660
113376a8708aa44a
1210abb126b18a04
134c3490c4b9b63
142061bd5873444
15d4a9444c675a
hex68bd29d630a4

115161660010660 has 24 divisors (see below), whose sum is σ = 241839817737336. Its totient is φ = 46064600820480.

The previous prime is 115161660010633. The next prime is 115161660010751. The reversal of 115161660010660 is 66010066161511.

It can be written as a sum of positive squares in 4 ways, for example, as 14510129764 + 115147149880896 = 120458^2 + 10730664^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12710974 + ... + 19796266.

It is an arithmetic number, because the mean of its divisors is an integer number (10076659072389).

Almost surely, 2115161660010660 is an apocalyptic number.

115161660010660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115161660010660 is an abundant number, since it is smaller than the sum of its proper divisors (126678157726676).

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

115161660010660 is a wasteful number, since it uses less digits than its factorization.

115161660010660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7897983 (or 7897981 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 115161660010660 in words is "one hundred fifteen trillion, one hundred sixty-one billion, six hundred sixty million, ten thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 812681 1625362 3250724 4063405 7085293 8126810 14170586 16253620 28341172 35426465 70852930 141705860 5758083000533 11516166001066 23032332002132 28790415002665 57580830005330 115161660010660