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15101016061668 = 2231258418005139
BaseRepresentation
bin1101101110111111101010…
…1100101011011011100100
31222110122100202220000001220
43123233322230223123210
53434403340102433133
652041151102220340
73116004153433035
oct333577254533344
958418322800056
1015101016061668
1148a233997a869
12183a8178846b0
138570343a1034
143a2c70864a8c
151b2c2aba45b3
hexdbbfab2b6e4

15101016061668 has 12 divisors (see below), whose sum is σ = 35235704143920. Its totient is φ = 5033672020552.

The previous prime is 15101016061661. The next prime is 15101016061669. The reversal of 15101016061668 is 86616061010151.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (15101016061661) 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, 629209002558 + ... + 629209002581.

It is an arithmetic number, because the mean of its divisors is an integer number (2936308678660).

Almost surely, 215101016061668 is an apocalyptic number.

It is an amenable number.

15101016061668 is an abundant number, since it is smaller than the sum of its proper divisors (20134688082252).

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

15101016061668 is a wasteful number, since it uses less digits than its factorization.

15101016061668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258418005146 (or 1258418005144 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The spelling of 15101016061668 in words is "fifteen trillion, one hundred one billion, sixteen million, sixty-one thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1258418005139 2516836010278 3775254015417 5033672020556 7550508030834 15101016061668