155916925068972 has 48 divisors (see below), whose sum is σ = 372268160633600. Its totient is φ = 50763459958848.

The previous prime is 155916925068959. The next prime is 155916925069027. The reversal of 155916925068972 is 279860529619551.

It is a junction number, because it is equal to n+sod(n) for n = 155916925068894 and 155916925068903.

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, 222665118 + ... + 223364250.

Almost surely, 2^{155916925068972} is an apocalyptic number.

155916925068972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155916925068972 is an abundant number, since it is smaller than the sum of its proper divisors (216351235564628).

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

155916925068972 is a wasteful number, since it uses less digits than its factorization.

155916925068972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131382 (or 1131380 counting only the distinct ones).

The product of its (nonzero) digits is 734832000, while the sum is 75.

The spelling of 155916925068972 in words is "one hundred fifty-five trillion, nine hundred sixteen billion, nine hundred twenty-five million, sixty-eight thousand, nine hundred seventy-two".