11661000115066 has 8 divisors (see below), whose sum is σ = 17492018248980. Its totient is φ = 5830327365408.

The previous prime is 11661000114941. The next prime is 11661000115087. The reversal of 11661000115066 is 66051100016611.

It can be written as a sum of positive squares in 2 ways, for example, as 10928214466225 + 732785648841 = 3305785^2 + 856029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86261641 + ... + 86396716.

Almost surely, 2^{11661000115066} is an apocalyptic number.

11661000115066 is a deficient number, since it is larger than the sum of its proper divisors (5831018133914).

11661000115066 is a wasteful number, since it uses less digits than its factorization.

11661000115066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172692128.

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 11661000115066 in words is "eleven trillion, six hundred sixty-one billion, one hundred fifteen thousand, sixty-six".