2646672560 has 80 divisors (see below), whose sum is σ = 7338387456. Its totient is φ = 867972864.

The previous prime is 2646672551. The next prime is 2646672577. The reversal of 2646672560 is 652766462.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89864 + ... + 115623.

Almost surely, 2^2646672560 is an apocalyptic number.

2646672560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2646672560 is an abundant number, since it is smaller than the sum of its proper divisors (4691714896).

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

2646672560 is a wasteful number, since it uses less digits than its factorization.

2646672560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205530 (or 205524 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The square root of 2646672560 is about 51445.8215990376. The cubic root of 2646672560 is about 1383.2480657109.

The spelling of 2646672560 in words is "two billion, six hundred forty-six million, six hundred seventy-two thousand, five hundred sixty".