11994901165 has 16 divisors (see below), whose sum is σ = 15879182256. Its totient is φ = 8641728000.

The previous prime is 11994901063. The next prime is 11994901199. The reversal of 11994901165 is 56110949911.

It can be written as a sum of positive squares in 8 ways, for example, as 1975091364 + 10019809801 = 44442^2 + 100099^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11994901165 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2247786 + ... + 2253115.

It is an arithmetic number, because the mean of its divisors is an integer number (992448891).

Almost surely, 2^11994901165 is an apocalyptic number.

It is an amenable number.

11994901165 is a deficient number, since it is larger than the sum of its proper divisors (3884281091).

11994901165 is a wasteful number, since it uses less digits than its factorization.

11994901165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500960.

The product of its (nonzero) digits is 87480, while the sum is 46.

The spelling of 11994901165 in words is "eleven billion, nine hundred ninety-four million, nine hundred one thousand, one hundred sixty-five".