2660746656 has 24 divisors (see below), whose sum is σ = 6984460224. Its totient is φ = 886915520.

The previous prime is 2660746603. The next prime is 2660746661. The reversal of 2660746656 is 6566470662.

2660746656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13857960 + ... + 13858151.

It is an arithmetic number, because the mean of its divisors is an integer number (291019176).

Almost surely, 2^2660746656 is an apocalyptic number.

It is an amenable number.

2660746656 is an abundant number, since it is smaller than the sum of its proper divisors (4323713568).

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

2660746656 is a wasteful number, since it uses less digits than its factorization.

2660746656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27716124 (or 27716116 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The square root of 2660746656 is about 51582.4258444676. The cubic root of 2660746656 is about 1385.6956118563.

The spelling of 2660746656 in words is "two billion, six hundred sixty million, seven hundred forty-six thousand, six hundred fifty-six".