155475692661312 has 112 divisors (see below), whose sum is σ = 457073876808000. Its totient is φ = 51824762357760.

The previous prime is 155475692661293. The next prime is 155475692661323. The reversal of 155475692661312 is 213166296574551.

155475692661312 is a `hidden beast` number, since 1 + 5 + 5 + 4 + 7 + 5 + 6 + 9 + 2 + 6 + 613 + 1 + 2 = 666.

It is a super-2 number, since 2×155475692661312² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155475692661312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227839987 + ... + 228521357.

Almost surely, 2^{155475692661312} is an apocalyptic number.

155475692661312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155475692661312 is an abundant number, since it is smaller than the sum of its proper divisors (301598184146688).

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

155475692661312 is a wasteful number, since it uses less digits than its factorization.

155475692661312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813441 (or 813425 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 63.

The spelling of 155475692661312 in words is "one hundred fifty-five trillion, four hundred seventy-five billion, six hundred ninety-two million, six hundred sixty-one thousand, three hundred twelve".