2665756954720 has 48 divisors (see below), whose sum is σ = 6300940272480. Its totient is φ = 1065779697664.

The previous prime is 2665756954649. The next prime is 2665756954733. The reversal of 2665756954720 is 274596575662.

It is a happy number.

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, 3759337 + ... + 4411816.

It is an arithmetic number, because the mean of its divisors is an integer number (131269589010).

Almost surely, 2^{2665756954720} is an apocalyptic number.

2665756954720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2665756954720 is an abundant number, since it is smaller than the sum of its proper divisors (3635183317760).

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

2665756954720 is a wasteful number, since it uses less digits than its factorization.

2665756954720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8173207 (or 8173199 counting only the distinct ones).

The product of its (nonzero) digits is 190512000, while the sum is 64.

The spelling of 2665756954720 in words is "two trillion, six hundred sixty-five billion, seven hundred fifty-six million, nine hundred fifty-four thousand, seven hundred twenty".