2660623344 has 60 divisors (see below), whose sum is σ = 7453688112. Its totient is φ = 885964800.

The previous prime is 2660623337. The next prime is 2660623367. The reversal of 2660623344 is 4433260662.

2660623344 is a `hidden beast` number, since 2 + 6 + 606 + 2 + 3 + 3 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2660623299 and 2660623308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139504 + ... + 157424.

Almost surely, 2^2660623344 is an apocalyptic number.

2660623344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2660623344 is an abundant number, since it is smaller than the sum of its proper divisors (4793064768).

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

2660623344 is a wasteful number, since it uses less digits than its factorization.

2660623344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18966 (or 18957 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 2660623344 is about 51581.2305398000. The cubic root of 2660623344 is about 1385.6742048906.

The spelling of 2660623344 in words is "two billion, six hundred sixty million, six hundred twenty-three thousand, three hundred forty-four".