65168072 has 32 divisors (see below), whose sum is σ = 129843000. Its totient is φ = 30557184.

The previous prime is 65168071. The next prime is 65168093. The reversal of 65168072 is 27086156.

It can be written as a sum of positive squares in 4 ways, for example, as 62188996 + 2979076 = 7886^2 + 1726^2 .

It is not an unprimeable number, because it can be changed into a prime (65168071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46778 + ... + 48150.

Almost surely, 2^65168072 is an apocalyptic number.

It is an amenable number.

65168072 is a deficient number, since it is larger than the sum of its proper divisors (64674928).

65168072 is a wasteful number, since it uses less digits than its factorization.

65168072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745 (or 1741 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 65168072 is about 8072.6744019563. The cubic root of 65168072 is about 402.4188270396.

The spelling of 65168072 in words is "sixty-five million, one hundred sixty-eight thousand, seventy-two".