155404313112 has 32 divisors (see below), whose sum is σ = 388778255280. Its totient is φ = 51765774720.

The previous prime is 155404313089. The next prime is 155404313167. The reversal of 155404313112 is 211313404551.

It is a self number, because there is not a number n which added to its sum of digits gives 155404313112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2193339 + ... + 2263082.

Almost surely, 2^155404313112 is an apocalyptic number.

155404313112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155404313112 is an abundant number, since it is smaller than the sum of its proper divisors (233373942168).

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

155404313112 is a wasteful number, since it uses less digits than its factorization.

155404313112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457883 (or 4457879 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 155404313112 its reverse (211313404551), we get a palindrome (366717717663).

The spelling of 155404313112 in words is "one hundred fifty-five billion, four hundred four million, three hundred thirteen thousand, one hundred twelve".