155404112125 has 32 divisors (see below), whose sum is σ = 200296212480. Its totient is φ = 120255408000.

The previous prime is 155404112119. The next prime is 155404112147. The reversal of 155404112125 is 521211404551.

It is not a de Polignac number, because 155404112125 - 2⁹ = 155404111613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9264496 + ... + 9281254.

It is an arithmetic number, because the mean of its divisors is an integer number (6259256640).

Almost surely, 2^155404112125 is an apocalyptic number.

It is an amenable number.

155404112125 is a deficient number, since it is larger than the sum of its proper divisors (44892100355).

155404112125 is a wasteful number, since it uses less digits than its factorization.

155404112125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19198 (or 19188 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 155404112125 its reverse (521211404551), we get a palindrome (676615516676).

The spelling of 155404112125 in words is "one hundred fifty-five billion, four hundred four million, one hundred twelve thousand, one hundred twenty-five".