155165012 has 12 divisors (see below), whose sum is σ = 271986036. Its totient is φ = 77454720.

The previous prime is 155165009. The next prime is 155165081. The reversal of 155165012 is 210561551.

155165012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7639696 + 147525316 = 2764^2 + 12146^2 .

It is a congruent number.

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, 29189 + ... + 34092.

It is an arithmetic number, because the mean of its divisors is an integer number (22665503).

Almost surely, 2^155165012 is an apocalyptic number.

It is an amenable number.

155165012 is a deficient number, since it is larger than the sum of its proper divisors (116821024).

155165012 is a wasteful number, since it uses less digits than its factorization.

155165012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63898 (or 63896 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 155165012 is about 12456.5248765456. The cubic root of 155165012 is about 537.3590899419.

The spelling of 155165012 in words is "one hundred fifty-five million, one hundred sixty-five thousand, twelve".