155713731830 has 32 divisors (see below), whose sum is σ = 295057244160. Its totient is φ = 59003169120.

The previous prime is 155713731827. The next prime is 155713731853. The reversal of 155713731830 is 38137317551.

It is a congruent number.

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, 4945397 + ... + 4976783.

It is an arithmetic number, because the mean of its divisors is an integer number (9220538880).

Almost surely, 2^155713731830 is an apocalyptic number.

155713731830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155713731830 is a deficient number, since it is larger than the sum of its proper divisors (139343512330).

155713731830 is a wasteful number, since it uses less digits than its factorization.

155713731830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57524.

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 155713731830 in words is "one hundred fifty-five billion, seven hundred thirteen million, seven hundred thirty-one thousand, eight hundred thirty".