155516235240 has 64 divisors (see below), whose sum is σ = 466626058560. Its totient is φ = 41464120320.

The previous prime is 155516235227. The next prime is 155516235307. The reversal of 155516235240 is 42532615551.

155516235240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640992 + ... + 849648.

It is an arithmetic number, because the mean of its divisors is an integer number (7291032165).

Almost surely, 2^155516235240 is an apocalyptic number.

155516235240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155516235240 is an abundant number, since it is smaller than the sum of its proper divisors (311109823320).

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

155516235240 is a wasteful number, since it uses less digits than its factorization.

155516235240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214882 (or 214878 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 155516235240 in words is "one hundred fifty-five billion, five hundred sixteen million, two hundred thirty-five thousand, two hundred forty".