65574912 has 96 divisors (see below), whose sum is σ = 188501040. Its totient is φ = 20152320.

The previous prime is 65574911. The next prime is 65574919. The reversal of 65574912 is 21947556.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65574911) 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, 79462 + ... + 80282.

Almost surely, 2^65574912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65574912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94250520).

65574912 is an abundant number, since it is smaller than the sum of its proper divisors (122926128).

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

65574912 is a wasteful number, since it uses less digits than its factorization.

65574912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 839 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 65574912 is about 8097.8337844142. The cubic root of 65574912 is about 403.2545151786.

The spelling of 65574912 in words is "sixty-five million, five hundred seventy-four thousand, nine hundred twelve".