5606665641 has 32 divisors (see below), whose sum is σ = 8470275840. Its totient is φ = 3664656000.

The previous prime is 5606665621. The next prime is 5606665643. The reversal of 5606665641 is 1465666065.

It is not a de Polignac number, because 5606665641 - 2⁵ = 5606665609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5606665643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270901 + ... + 290861.

It is an arithmetic number, because the mean of its divisors is an integer number (264696120).

Almost surely, 2^5606665641 is an apocalyptic number.

It is an amenable number.

5606665641 is a deficient number, since it is larger than the sum of its proper divisors (2863610199).

5606665641 is a wasteful number, since it uses less digits than its factorization.

5606665641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20174 (or 20168 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The square root of 5606665641 is about 74877.6711777283. The cubic root of 5606665641 is about 1776.5123014185.

The spelling of 5606665641 in words is "five billion, six hundred six million, six hundred sixty-five thousand, six hundred forty-one".