65464584372 has 96 divisors (see below), whose sum is σ = 185836492800. Its totient is φ = 19764453600.

The previous prime is 65464584259. The next prime is 65464584377. The reversal of 65464584372 is 27348546456.

65464584372 is a `hidden beast` number, since 6 + 54 + 6 + 4 + 584 + 3 + 7 + 2 = 666.

It is a super-2 number, since 2×65464584372² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65464584377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220279 + ... + 423617.

It is an arithmetic number, because the mean of its divisors is an integer number (1935796800).

Almost surely, 2^65464584372 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 65464584372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92918246400).

65464584372 is an abundant number, since it is smaller than the sum of its proper divisors (120371908428).

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

65464584372 is a wasteful number, since it uses less digits than its factorization.

65464584372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203634 (or 203626 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 54.

The spelling of 65464584372 in words is "sixty-five billion, four hundred sixty-four million, five hundred eighty-four thousand, three hundred seventy-two".