2666644134 has 64 divisors (see below), whose sum is σ = 6878615040. Its totient is φ = 668747520.

The previous prime is 2666644111. The next prime is 2666644139. The reversal of 2666644134 is 4314466662.

It is a super-2 number, since 2×2666644134² = 14221981874793219912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666644139) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 86119 + ... + 112914.

It is an arithmetic number, because the mean of its divisors is an integer number (107478360).

Almost surely, 2^2666644134 is an apocalyptic number.

2666644134 is an abundant number, since it is smaller than the sum of its proper divisors (4211970906).

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

2666644134 is a wasteful number, since it uses less digits than its factorization.

2666644134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199085.

The product of its digits is 497664, while the sum is 42.

The square root of 2666644134 is about 51639.5597773645. The cubic root of 2666644134 is about 1386.7186428706.

The spelling of 2666644134 in words is "two billion, six hundred sixty-six million, six hundred forty-four thousand, one hundred thirty-four".