2660422864 has 40 divisors (see below), whose sum is σ = 5919130080. Its totient is φ = 1145635200.

The previous prime is 2660422847. The next prime is 2660422907. The reversal of 2660422864 is 4682240662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394447 + ... + 401134.

It is an arithmetic number, because the mean of its divisors is an integer number (147978252).

Almost surely, 2^2660422864 is an apocalyptic number.

It is an amenable number.

2660422864 is an abundant number, since it is smaller than the sum of its proper divisors (3258707216).

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

2660422864 is a wasteful number, since it uses less digits than its factorization.

2660422864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795619 (or 795613 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 2660422864 is about 51579.2871606423. The cubic root of 2660422864 is about 1385.6394001467.

It can be divided in two parts, 2660 and 422864, that added together give a palindrome (425524).

The spelling of 2660422864 in words is "two billion, six hundred sixty million, four hundred twenty-two thousand, eight hundred sixty-four".