8615668020 has 48 divisors (see below), whose sum is σ = 24483939648. Its totient is φ = 2263219200.

The previous prime is 8615668001. The next prime is 8615668037. The reversal of 8615668020 is 208665168.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1067581 + ... + 1075620.

It is an arithmetic number, because the mean of its divisors is an integer number (510082076).

Almost surely, 2^8615668020 is an apocalyptic number.

It is an amenable number.

8615668020 is an abundant number, since it is smaller than the sum of its proper divisors (15868271628).

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

8615668020 is a wasteful number, since it uses less digits than its factorization.

8615668020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143280 (or 2143278 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 8615668020 is about 92820.6228162686. The cubic root of 8615668020 is about 2050.0430702829.

The spelling of 8615668020 in words is "eight billion, six hundred fifteen million, six hundred sixty-eight thousand, twenty".