155919662256 has 40 divisors (see below), whose sum is σ = 402948120880. Its totient is φ = 51953135616.

The previous prime is 155919662243. The next prime is 155919662267. The reversal of 155919662256 is 652266919551.

It is a super-2 number, since 2×155919662256² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155919662196 and 155919662205.

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, 501901 + ... + 750828.

It is an arithmetic number, because the mean of its divisors is an integer number (10073703022).

Almost surely, 2^155919662256 is an apocalyptic number.

155919662256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155919662256 is an abundant number, since it is smaller than the sum of its proper divisors (247028458624).

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

155919662256 is a wasteful number, since it uses less digits than its factorization.

155919662256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255333 (or 1255327 counting only the distinct ones).

The product of its digits is 8748000, while the sum is 57.

The spelling of 155919662256 in words is "one hundred fifty-five billion, nine hundred nineteen million, six hundred sixty-two thousand, two hundred fifty-six".