155081975412 has 96 divisors (see below), whose sum is σ = 445451087872. Its totient is φ = 40892708736.

The previous prime is 155081975407. The next prime is 155081975437. The reversal of 155081975412 is 214579180551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7309083 + ... + 7330269.

Almost surely, 2^155081975412 is an apocalyptic number.

155081975412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155081975412 is an abundant number, since it is smaller than the sum of its proper divisors (290369112460).

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

155081975412 is a wasteful number, since it uses less digits than its factorization.

155081975412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27917 (or 27915 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 48.

The spelling of 155081975412 in words is "one hundred fifty-five billion, eighty-one million, nine hundred seventy-five thousand, four hundred twelve".