11506669667576 has 16 divisors (see below), whose sum is σ = 21578888201640. Its totient is φ = 5752299480480.

The previous prime is 11506669667567. The next prime is 11506669667579. The reversal of 11506669667576 is 67576696660511.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11506669667579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129371930 + ... + 129460841.

Almost surely, 2^{11506669667576} is an apocalyptic number.

It is an amenable number.

11506669667576 is a deficient number, since it is larger than the sum of its proper divisors (10072218534064).

11506669667576 is a wasteful number, since it uses less digits than its factorization.

11506669667576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258838334 (or 258838330 counting only the distinct ones).

The product of its (nonzero) digits is 514382400, while the sum is 71.

The spelling of 11506669667576 in words is "eleven trillion, five hundred six billion, six hundred sixty-nine million, six hundred sixty-seven thousand, five hundred seventy-six".