2660064802680 has 64 divisors (see below), whose sum is σ = 7987716180000. Its totient is φ = 708682012160.

The previous prime is 2660064802663. The next prime is 2660064802687. The reversal of 2660064802680 is 862084600662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660064802687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10319055 + ... + 10573694.

Almost surely, 2^{2660064802680} is an apocalyptic number.

2660064802680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2660064802680 is an abundant number, since it is smaller than the sum of its proper divisors (5327651377320).

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

2660064802680 is a wasteful number, since it uses less digits than its factorization.

2660064802680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20893824 (or 20893820 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

The spelling of 2660064802680 in words is "two trillion, six hundred sixty billion, sixty-four million, eight hundred two thousand, six hundred eighty".