11666160005504 has 16 divisors (see below), whose sum is σ = 23241178136220. Its totient is φ = 5833080002688.

The previous prime is 11666160005501. The next prime is 11666160005567. The reversal of 11666160005504 is 40550006166611.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666160005501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45570937394 + ... + 45570937649.

Almost surely, 2^{11666160005504} is an apocalyptic number.

It is an amenable number.

11666160005504 is a deficient number, since it is larger than the sum of its proper divisors (11575018130716).

11666160005504 is an frugal number, since it uses more digits than its factorization.

11666160005504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91141875057 (or 91141875045 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 11666160005504 in words is "eleven trillion, six hundred sixty-six billion, one hundred sixty million, five thousand, five hundred four".