2660640348 has 96 divisors (see below), whose sum is σ = 6514278400. Its totient is φ = 844240320.

The previous prime is 2660640337. The next prime is 2660640371. The reversal of 2660640348 is 8430460662.

2660640348 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2660640348² = 14158014122811122208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9401415 + ... + 9401697.

Almost surely, 2^2660640348 is an apocalyptic number.

It is an amenable number.

2660640348 is an abundant number, since it is smaller than the sum of its proper divisors (3853638052).

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

2660640348 is a wasteful number, since it uses less digits than its factorization.

2660640348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 2660640348 is about 51581.3953669344. The cubic root of 2660640348 is about 1385.6771568247.

The spelling of 2660640348 in words is "two billion, six hundred sixty million, six hundred forty thousand, three hundred forty-eight".