6665586456 has 32 divisors (see below), whose sum is σ = 16718264640. Its totient is φ = 2214622368.

The previous prime is 6665586443. The next prime is 6665586469. The reversal of 6665586456 is 6546855666.

It is an interprime number because it is at equal distance from previous prime (6665586443) and next prime (6665586469).

It is a junction number, because it is equal to n+sod(n) for n = 6665586396 and 6665586405.

It is a congruent number.

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, 444966 + ... + 459701.

It is an arithmetic number, because the mean of its divisors is an integer number (522445770).

Almost surely, 2^6665586456 is an apocalyptic number.

It is an amenable number.

6665586456 is an abundant number, since it is smaller than the sum of its proper divisors (10052678184).

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

6665586456 is a wasteful number, since it uses less digits than its factorization.

6665586456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904983 (or 904979 counting only the distinct ones).

The product of its digits is 31104000, while the sum is 57.

The square root of 6665586456 is about 81643.0429124246. The cubic root of 6665586456 is about 1881.9704005557.

The spelling of 6665586456 in words is "six billion, six hundred sixty-five million, five hundred eighty-six thousand, four hundred fifty-six".