2658403668 has 48 divisors (see below), whose sum is σ = 6522082560. Its totient is φ = 841545600.

The previous prime is 2658403637. The next prime is 2658403681. The reversal of 2658403668 is 8663048562.

It is a super-2 number, since 2×2658403668² = 14134220124071708448, 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 15 ways as a sum of consecutive naturals, for example, 41388 + ... + 83843.

It is an arithmetic number, because the mean of its divisors is an integer number (135876720).

Almost surely, 2^2658403668 is an apocalyptic number.

It is an amenable number.

2658403668 is an abundant number, since it is smaller than the sum of its proper divisors (3863678892).

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

2658403668 is a wasteful number, since it uses less digits than its factorization.

2658403668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125328 (or 125326 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 48.

The square root of 2658403668 is about 51559.7097354126. The cubic root of 2658403668 is about 1385.2887559301.

The spelling of 2658403668 in words is "two billion, six hundred fifty-eight million, four hundred three thousand, six hundred sixty-eight".