5666642620 has 24 divisors (see below), whose sum is σ = 11906811504. Its totient is φ = 2265350016.

The previous prime is 5666642603. The next prime is 5666642629. The reversal of 5666642620 is 262466665.

It is a super-2 number, since 2×5666642620² = 64221677165600928800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666642629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45754 + ... + 115873.

It is an arithmetic number, because the mean of its divisors is an integer number (496117146).

Almost surely, 2^5666642620 is an apocalyptic number.

It is an amenable number.

5666642620 is an abundant number, since it is smaller than the sum of its proper divisors (6240168884).

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

5666642620 is a wasteful number, since it uses less digits than its factorization.

5666642620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163389 (or 163387 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The square root of 5666642620 is about 75277.1055500940. The cubic root of 5666642620 is about 1782.8245585832.

The spelling of 5666642620 in words is "five billion, six hundred sixty-six million, six hundred forty-two thousand, six hundred twenty".