6606631660 has 24 divisors (see below), whose sum is σ = 13877097696. Its totient is φ = 2642048640.

The previous prime is 6606631651. The next prime is 6606631663. The reversal of 6606631660 is 661366066.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6606631663) 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, 57840 + ... + 128680.

It is an arithmetic number, because the mean of its divisors is an integer number (578212404).

Almost surely, 2^6606631660 is an apocalyptic number.

It is an amenable number.

6606631660 is an abundant number, since it is smaller than the sum of its proper divisors (7270466036).

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

6606631660 is a wasteful number, since it uses less digits than its factorization.

6606631660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75513 (or 75511 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 6606631660 is about 81281.1888446521. The cubic root of 6606631660 is about 1876.4055035612.

The spelling of 6606631660 in words is "six billion, six hundred six million, six hundred thirty-one thousand, six hundred sixty".