155113511455 has 16 divisors (see below), whose sum is σ = 212733734400. Its totient is φ = 106360234272.

The previous prime is 155113511447. The next prime is 155113511503. The reversal of 155113511455 is 554115311551.

It is a cyclic number.

It is not a de Polignac number, because 155113511455 - 2³ = 155113511447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1727172 + ... + 1814758.

It is an arithmetic number, because the mean of its divisors is an integer number (13295858400).

Almost surely, 2^155113511455 is an apocalyptic number.

155113511455 is a deficient number, since it is larger than the sum of its proper divisors (57620222945).

155113511455 is an equidigital number, since it uses as much as digits as its factorization.

155113511455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138198.

The product of its digits is 37500, while the sum is 37.

The spelling of 155113511455 in words is "one hundred fifty-five billion, one hundred thirteen million, five hundred eleven thousand, four hundred fifty-five".