155087313512 has 8 divisors (see below), whose sum is σ = 290788712850. Its totient is φ = 77543656752.

The previous prime is 155087313509. The next prime is 155087313539. The reversal of 155087313512 is 215313780551.

It can be written as a sum of positive squares in only one way, i.e., 152501184196 + 2586129316 = 390514^2 + 50854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 155087313512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9692957087 + ... + 9692957102.

Almost surely, 2^155087313512 is an apocalyptic number.

It is an amenable number.

155087313512 is a deficient number, since it is larger than the sum of its proper divisors (135701399338).

155087313512 is a wasteful number, since it uses less digits than its factorization.

155087313512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19385914195 (or 19385914191 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 41.

The spelling of 155087313512 in words is "one hundred fifty-five billion, eighty-seven million, three hundred thirteen thousand, five hundred twelve".