155107417256 has 32 divisors (see below), whose sum is σ = 317341130400. Its totient is φ = 70486491840.

The previous prime is 155107417253. The next prime is 155107417271. The reversal of 155107417256 is 652714701551.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (155107417253) 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, 162386 + ... + 580158.

It is an arithmetic number, because the mean of its divisors is an integer number (9916910325).

Almost surely, 2^155107417256 is an apocalyptic number.

It is an amenable number.

155107417256 is an abundant number, since it is smaller than the sum of its proper divisors (162233713144).

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

155107417256 is a wasteful number, since it uses less digits than its factorization.

155107417256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422009 (or 422005 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 44.

The spelling of 155107417256 in words is "one hundred fifty-five billion, one hundred seven million, four hundred seventeen thousand, two hundred fifty-six".