155321425164 has 24 divisors (see below), whose sum is σ = 362431848240. Its totient is φ = 51771638464.

The previous prime is 155321425153. The next prime is 155321425187. The reversal of 155321425164 is 461524123551.

It is a super-2 number, since 2×155321425164² (a number of 23 digits) contains 22 as substring.

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, 41422 + ... + 558890.

It is an arithmetic number, because the mean of its divisors is an integer number (15101327010).

Almost surely, 2^155321425164 is an apocalyptic number.

It is an amenable number.

155321425164 is an abundant number, since it is smaller than the sum of its proper divisors (207110423076).

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

155321425164 is a wasteful number, since it uses less digits than its factorization.

155321425164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542489 (or 542487 counting only the distinct ones).

The product of its digits is 144000, while the sum is 39.

The spelling of 155321425164 in words is "one hundred fifty-five billion, three hundred twenty-one million, four hundred twenty-five thousand, one hundred sixty-four".