65504365641 has 96 divisors (see below), whose sum is σ = 115171056000. Its totient is φ = 35327093760.

The previous prime is 65504365637. The next prime is 65504365727. The reversal of 65504365641 is 14656340556.

65504365641 is a `hidden beast` number, since 6 + 5 + 50 + 4 + 36 + 564 + 1 = 666.

It is not a de Polignac number, because 65504365641 - 2² = 65504365637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65504369641) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38553810 + ... + 38555508.

It is an arithmetic number, because the mean of its divisors is an integer number (1199698500).

Almost surely, 2^65504365641 is an apocalyptic number.

It is an amenable number.

65504365641 is a deficient number, since it is larger than the sum of its proper divisors (49666690359).

65504365641 is a wasteful number, since it uses less digits than its factorization.

65504365641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791 (or 2788 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 65504365641 in words is "sixty-five billion, five hundred four million, three hundred sixty-five thousand, six hundred forty-one".