11656510016055 has 32 divisors (see below), whose sum is σ = 18715610317824. Its totient is φ = 6195077410176.

The previous prime is 11656510016033. The next prime is 11656510016057. The reversal of 11656510016055 is 55061001565611.

It is not a de Polignac number, because 11656510016055 - 2⁵ = 11656510016023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11656510015998 and 11656510016016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11656510016057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56623522 + ... + 56829008.

It is an arithmetic number, because the mean of its divisors is an integer number (584862822432).

Almost surely, 2^{11656510016055} is an apocalyptic number.

11656510016055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11656510016055 is a deficient number, since it is larger than the sum of its proper divisors (7059100301769).

11656510016055 is a wasteful number, since it uses less digits than its factorization.

11656510016055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218695.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 11656510016055 in words is "eleven trillion, six hundred fifty-six billion, five hundred ten million, sixteen thousand, fifty-five".