2660646681124 has 12 divisors (see below), whose sum is σ = 4656560785884. Its totient is φ = 1330200742304.

The previous prime is 2660646681113. The next prime is 2660646681137. The reversal of 2660646681124 is 4211866460662.

It can be written as a sum of positive squares in 2 ways, for example, as 1958684220900 + 701962460224 = 1399530^2 + 837832^2 .

It is a super-2 number, since 2×2660646681124² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30600727 + ... + 30687550.

It is an arithmetic number, because the mean of its divisors is an integer number (388046732157).

Almost surely, 2^{2660646681124} is an apocalyptic number.

It is an amenable number.

2660646681124 is a deficient number, since it is larger than the sum of its proper divisors (1995914104760).

2660646681124 is a wasteful number, since it uses less digits than its factorization.

2660646681124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61299134 (or 61299132 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 2660646681124 in words is "two trillion, six hundred sixty billion, six hundred forty-six million, six hundred eighty-one thousand, one hundred twenty-four".