2660955875440 has 80 divisors (see below), whose sum is σ = 6203168962848. Its totient is φ = 1061555217408.

The previous prime is 2660955875401. The next prime is 2660955875467. The reversal of 2660955875440 is 445785590662.

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

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 76682734 + ... + 76717426.

Almost surely, 2^{2660955875440} is an apocalyptic number.

2660955875440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2660955875440 is an abundant number, since it is smaller than the sum of its proper divisors (3542213087408).

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

2660955875440 is a wasteful number, since it uses less digits than its factorization.

2660955875440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37226 (or 37220 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 61.

The spelling of 2660955875440 in words is "two trillion, six hundred sixty billion, nine hundred fifty-five million, eight hundred seventy-five thousand, four hundred forty".