155160520212172 has 12 divisors (see below), whose sum is σ = 271536376207096. Its totient is φ = 77578698438720.

The previous prime is 155160520212163. The next prime is 155160520212221. The reversal of 155160520212172 is 271212025061551.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390193278 + ... + 390590725.

Almost surely, 2^{155160520212172} is an apocalyptic number.

It is an amenable number.

155160520212172 is a deficient number, since it is larger than the sum of its proper divisors (116375855994924).

155160520212172 is a wasteful number, since it uses less digits than its factorization.

155160520212172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780833688 (or 780833686 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 40.

The spelling of 155160520212172 in words is "one hundred fifty-five trillion, one hundred sixty billion, five hundred twenty million, two hundred twelve thousand, one hundred seventy-two".