11553105206155 has 32 divisors (see below), whose sum is σ = 14618090813760. Its totient is φ = 8741226424320.

The previous prime is 11553105206099. The next prime is 11553105206183. The reversal of 11553105206155 is 55160250135511.

It is not a de Polignac number, because 11553105206155 - 2²¹ = 11553103109003 is a prime.

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, 348377775 + ... + 348410935.

It is an arithmetic number, because the mean of its divisors is an integer number (456815337930).

Almost surely, 2^{11553105206155} is an apocalyptic number.

11553105206155 is a deficient number, since it is larger than the sum of its proper divisors (3064985607605).

11553105206155 is a wasteful number, since it uses less digits than its factorization.

11553105206155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39279.

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 11553105206155 in words is "eleven trillion, five hundred fifty-three billion, one hundred five million, two hundred six thousand, one hundred fifty-five".