2666431692 has 36 divisors (see below), whose sum is σ = 6742008000. Its totient is φ = 888565152.

The previous prime is 2666431667. The next prime is 2666431711. The reversal of 2666431692 is 2961346662.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161434 + ... + 177182.

It is an arithmetic number, because the mean of its divisors is an integer number (187278000).

Almost surely, 2^2666431692 is an apocalyptic number.

It is an amenable number.

2666431692 is an abundant number, since it is smaller than the sum of its proper divisors (4075576308).

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

2666431692 is a wasteful number, since it uses less digits than its factorization.

2666431692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20462 (or 20457 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 2666431692 is about 51637.5027668845. The cubic root of 2666431692 is about 1386.6818169213.

The spelling of 2666431692 in words is "two billion, six hundred sixty-six million, four hundred thirty-one thousand, six hundred ninety-two".