2656655120440 has 32 divisors (see below), whose sum is σ = 5977752840000. Its totient is φ = 1062612480384.

The previous prime is 2656655120429. The next prime is 2656655120443. The reversal of 2656655120440 is 440215566562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656655120443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674640 + ... + 2401759.

It is an arithmetic number, because the mean of its divisors is an integer number (186804776250).

Almost surely, 2^{2656655120440} is an apocalyptic number.

2656655120440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2656655120440 is an abundant number, since it is smaller than the sum of its proper divisors (3321097719560).

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

2656655120440 is a wasteful number, since it uses less digits than its factorization.

2656655120440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097999 (or 3097995 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 2656655120440 in words is "two trillion, six hundred fifty-six billion, six hundred fifty-five million, one hundred twenty thousand, four hundred forty".