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12916897583557 = 116411831924207
BaseRepresentation
bin1011101111110111001100…
…0101111001000111000101
31200201211202210122100222211
42323331303011321013011
53143112301240133212
643245535115223421
72502133522616032
oct273756305710705
950654683570884
1012916897583557
114130030a41290
12154746aa47b71
1372909ab90736
14329277224389
15175ee8b439a7
hexbbf731791c5

12916897583557 has 8 divisors (see below), whose sum is σ = 14113144098432. Its totient is φ = 11724314918400.

The previous prime is 12916897583543. The next prime is 12916897583573. The reversal of 12916897583557 is 75538579861921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12916897583557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12916897583257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915955053 + ... + 915969154.

It is an arithmetic number, because the mean of its divisors is an integer number (1764143012304).

Almost surely, 212916897583557 is an apocalyptic number.

It is an amenable number.

12916897583557 is a deficient number, since it is larger than the sum of its proper divisors (1196246514875).

12916897583557 is a wasteful number, since it uses less digits than its factorization.

12916897583557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831924859.

The product of its digits is 1143072000, while the sum is 76.

The spelling of 12916897583557 in words is "twelve trillion, nine hundred sixteen billion, eight hundred ninety-seven million, five hundred eighty-three thousand, five hundred fifty-seven".

Divisors: 1 11 641 7051 1831924207 20151166277 1174263416687 12916897583557