65164272 has 20 divisors (see below), whose sum is σ = 168341160. Its totient is φ = 21721408.

The previous prime is 65164249. The next prime is 65164277. The reversal of 65164272 is 27246156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65164277) 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, 678747 + ... + 678842.

It is an arithmetic number, because the mean of its divisors is an integer number (8417058).

Almost surely, 2^65164272 is an apocalyptic number.

It is an amenable number.

65164272 is an abundant number, since it is smaller than the sum of its proper divisors (103176888).

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

65164272 is a wasteful number, since it uses less digits than its factorization.

65164272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357600 (or 1357594 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 65164272 is about 8072.4390366233. The cubic root of 65164272 is about 402.4110051046.

The spelling of 65164272 in words is "sixty-five million, one hundred sixty-four thousand, two hundred seventy-two".