65163864 has 16 divisors (see below), whose sum is σ = 162909720. Its totient is φ = 21721280.

The previous prime is 65163859. The next prime is 65163869. The reversal of 65163864 is 46836156.

It is an interprime number because it is at equal distance from previous prime (65163859) and next prime (65163869).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65163869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1357557 + ... + 1357604.

Almost surely, 2^65163864 is an apocalyptic number.

It is an amenable number.

65163864 is an abundant number, since it is smaller than the sum of its proper divisors (97745856).

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

65163864 is a wasteful number, since it uses less digits than its factorization.

65163864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715170 (or 2715166 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 65163864 is about 8072.4137654112. The cubic root of 65163864 is about 402.4101652577.

The spelling of 65163864 in words is "sixty-five million, one hundred sixty-three thousand, eight hundred sixty-four".