155909490152 has 64 divisors (see below), whose sum is σ = 329550197760. Its totient is φ = 68656089600.

The previous prime is 155909490127. The next prime is 155909490161. The reversal of 155909490152 is 251094909551.

It is a self number, because there is not a number n which added to its sum of digits gives 155909490152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111653 + ... + 569460.

It is an arithmetic number, because the mean of its divisors is an integer number (5149221840).

Almost surely, 2^155909490152 is an apocalyptic number.

It is an amenable number.

155909490152 is an abundant number, since it is smaller than the sum of its proper divisors (173640707608).

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

155909490152 is a wasteful number, since it uses less digits than its factorization.

155909490152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681234 (or 681230 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 50.

The spelling of 155909490152 in words is "one hundred fifty-five billion, nine hundred nine million, four hundred ninety thousand, one hundred fifty-two".