11661116102 has 16 divisors (see below), whose sum is σ = 18551860272. Its totient is φ = 5478320640.

The previous prime is 11661116099. The next prime is 11661116111. The reversal of 11661116102 is 20161116611.

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, 269024 + ... + 309347.

It is an arithmetic number, because the mean of its divisors is an integer number (1159491267).

Almost surely, 2^11661116102 is an apocalyptic number.

11661116102 is a deficient number, since it is larger than the sum of its proper divisors (6890744170).

11661116102 is a wasteful number, since it uses less digits than its factorization.

11661116102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578983.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 11661116102 in words is "eleven billion, six hundred sixty-one million, one hundred sixteen thousand, one hundred two".