155825983504 has 135 divisors (see below), whose sum is σ = 324402947479. Its totient is φ = 72507312640.

The previous prime is 155825983471. The next prime is 155825983517. The reversal of 155825983504 is 405389528551.

The square root of 155825983504 is 394748.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 41148933904 + 114677049600 = 202852^2 + 338640^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1877421447 + ... + 1877421529.

Almost surely, 2^155825983504 is an apocalyptic number.

155825983504 is the 394748-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155825983504

155825983504 is an abundant number, since it is smaller than the sum of its proper divisors (168576963975).

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

155825983504 is an frugal number, since it uses more digits than its factorization.

155825983504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 55.

The spelling of 155825983504 in words is "one hundred fifty-five billion, eight hundred twenty-five million, nine hundred eighty-three thousand, five hundred four".