155401200052552 has 16 divisors (see below), whose sum is σ = 291384504485100. Its totient is φ = 77698665523200.

The previous prime is 155401200052513. The next prime is 155401200052607. The reversal of 155401200052552 is 255250002104551.

It can be written as a sum of positive squares in 2 ways, for example, as 154954048386916 + 447151665636 = 12448054^2 + 668694^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241471449 + ... + 242114152.

Almost surely, 2^{155401200052552} is an apocalyptic number.

It is an amenable number.

155401200052552 is a deficient number, since it is larger than the sum of its proper divisors (135983304432548).

155401200052552 is a wasteful number, since it uses less digits than its factorization.

155401200052552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483625776 (or 483625772 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 37.

The spelling of 155401200052552 in words is "one hundred fifty-five trillion, four hundred one billion, two hundred million, fifty-two thousand, five hundred fifty-two".