11550161506172 has 6 divisors (see below), whose sum is σ = 20212782635808. Its totient is φ = 5775080753084.

The previous prime is 11550161506151. The next prime is 11550161506181. The reversal of 11550161506172 is 27160516105511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1443770188268 + ... + 1443770188275.

It is an arithmetic number, because the mean of its divisors is an integer number (3368797105968).

Almost surely, 2^{11550161506172} is an apocalyptic number.

It is an amenable number.

11550161506172 is a deficient number, since it is larger than the sum of its proper divisors (8662621129636).

11550161506172 is a wasteful number, since it uses less digits than its factorization.

11550161506172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887540376547 (or 2887540376545 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 41.

The spelling of 11550161506172 in words is "eleven trillion, five hundred fifty billion, one hundred sixty-one million, five hundred six thousand, one hundred seventy-two".