4013646660 has 96 divisors (see below), whose sum is σ = 12777367680. Its totient is φ = 1045408896.

The previous prime is 4013646649. The next prime is 4013646673. The reversal of 4013646660 is 666463104.

It is a super-2 number, since 2×4013646660² = 32218719022658311200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63207 + ... + 109646.

It is an arithmetic number, because the mean of its divisors is an integer number (133097580).

Almost surely, 2^4013646660 is an apocalyptic number.

It is an amenable number.

4013646660 is an abundant number, since it is smaller than the sum of its proper divisors (8763721020).

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

4013646660 is a wasteful number, since it uses less digits than its factorization.

4013646660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172914 (or 172906 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 4013646660 is about 63353.3476621402. The cubic root of 4013646660 is about 1589.2042297773.

The spelling of 4013646660 in words is "four billion, thirteen million, six hundred forty-six thousand, six hundred sixty".