65113872 has 20 divisors (see below), whose sum is σ = 168210960. Its totient is φ = 21704608.

The previous prime is 65113849. The next prime is 65113879. The reversal of 65113872 is 27831156.

It is not an unprimeable number, because it can be changed into a prime (65113879) 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, 678222 + ... + 678317.

It is an arithmetic number, because the mean of its divisors is an integer number (8410548).

Almost surely, 2^65113872 is an apocalyptic number.

It is an amenable number.

65113872 is an abundant number, since it is smaller than the sum of its proper divisors (103097088).

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

65113872 is a wasteful number, since it uses less digits than its factorization.

65113872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356550 (or 1356544 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 65113872 is about 8069.3166996964. The cubic root of 65113872 is about 402.3072327712.

The spelling of 65113872 in words is "sixty-five million, one hundred thirteen thousand, eight hundred seventy-two".