2608660680 has 32 divisors (see below), whose sum is σ = 7825982400. Its totient is φ = 695642816.

The previous prime is 2608660603. The next prime is 2608660753. The reversal of 2608660680 is 860668062.

It is a super-2 number, since 2×2608660680² = 13610221086756124800, which contains 22 as substring.

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, 10869300 + ... + 10869539.

It is an arithmetic number, because the mean of its divisors is an integer number (244561950).

Almost surely, 2^2608660680 is an apocalyptic number.

2608660680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2608660680 is an abundant number, since it is smaller than the sum of its proper divisors (5217321720).

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

2608660680 is a wasteful number, since it uses less digits than its factorization.

2608660680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21738853 (or 21738849 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 2608660680 is about 51075.0494860260. The cubic root of 2608660680 is about 1376.5939738351.

The spelling of 2608660680 in words is "two billion, six hundred eight million, six hundred sixty thousand, six hundred eighty".