11656066560666 has 32 divisors (see below), whose sum is σ = 25436284098048. Its totient is φ = 3531465528240.

The previous prime is 11656066560617. The next prime is 11656066560667. The reversal of 11656066560666 is 66606566065611.

It is a super-2 number, since 2×11656066560666² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11656066560667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16548750 + ... + 17238713.

It is an arithmetic number, because the mean of its divisors is an integer number (794883878064).

Almost surely, 2^{11656066560666} is an apocalyptic number.

11656066560666 is an abundant number, since it is smaller than the sum of its proper divisors (13780217537382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11656066560666 is a wasteful number, since it uses less digits than its factorization.

11656066560666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33792706.

The product of its (nonzero) digits is 41990400, while the sum is 60.

The spelling of 11656066560666 in words is "eleven trillion, six hundred fifty-six billion, sixty-six million, five hundred sixty thousand, six hundred sixty-six".