2501111166 has 32 divisors (see below), whose sum is σ = 5058160800. Its totient is φ = 824411520.

The previous prime is 2501111161. The next prime is 2501111201. The reversal of 2501111166 is 6611111052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501111161) 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 in 15 ways as a sum of consecutive naturals, for example, 350280 + ... + 357348.

It is an arithmetic number, because the mean of its divisors is an integer number (158067525).

Almost surely, 2^2501111166 is an apocalyptic number.

2501111166 is an abundant number, since it is smaller than the sum of its proper divisors (2557049634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2501111166 is a wasteful number, since it uses less digits than its factorization.

2501111166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7724.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 2501111166 is about 50011.1104255844. The cubic root of 2501111166 is about 1357.4098564184.

The spelling of 2501111166 in words is "two billion, five hundred one million, one hundred eleven thousand, one hundred sixty-six".