155315331153 has 12 divisors (see below), whose sum is σ = 224348795008. Its totient is φ = 103541510520.

The previous prime is 155315331139. The next prime is 155315331173. The reversal of 155315331153 is 351133513551.

155315331153 is a `hidden beast` number, since 1 + 5 + 5 + 3 + 1 + 533 + 115 + 3 = 666.

155315331153 is a nontrivial binomial coefficient, being equal to C(557343, 2).

It is not a de Polignac number, because 155315331153 - 2²⁴ = 155298553937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155315331173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418008 + ... + 696678.

Almost surely, 2^155315331153 is an apocalyptic number.

155315331153 is the 557342-nd triangular number.

It is an amenable number.

155315331153 is a deficient number, since it is larger than the sum of its proper divisors (69033463855).

155315331153 is a wasteful number, since it uses less digits than its factorization.

155315331153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340604 (or 340601 counting only the distinct ones).

The product of its digits is 50625, while the sum is 36.

The spelling of 155315331153 in words is "one hundred fifty-five billion, three hundred fifteen million, three hundred thirty-one thousand, one hundred fifty-three".