65606640131626 has 16 divisors (see below), whose sum is σ = 107357450969088. Its totient is φ = 29820885961600.

The previous prime is 65606640131611. The next prime is 65606640131651. The reversal of 65606640131626 is 62613104660656.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13562215 + ... + 17752378.

It is an arithmetic number, because the mean of its divisors is an integer number (6709840685568).

Almost surely, 2^{65606640131626} is an apocalyptic number.

65606640131626 is a deficient number, since it is larger than the sum of its proper divisors (41750810837462).

65606640131626 is a wasteful number, since it uses less digits than its factorization.

65606640131626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31409837.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 65606640131626 in words is "sixty-five trillion, six hundred six billion, six hundred forty million, one hundred thirty-one thousand, six hundred twenty-six".