653311664 has 40 divisors (see below), whose sum is σ = 1307721360. Its totient is φ = 315940608.

The previous prime is 653311643. The next prime is 653311667. The reversal of 653311664 is 466113356.

It is a super-2 number, since 2×653311664² = 853632260636897792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (653311667) 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, 99227 + ... + 105605.

It is an arithmetic number, because the mean of its divisors is an integer number (32693034).

Almost surely, 2^653311664 is an apocalyptic number.

It is an amenable number.

653311664 is an abundant number, since it is smaller than the sum of its proper divisors (654409696).

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

653311664 is a wasteful number, since it uses less digits than its factorization.

653311664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6597 (or 6591 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 653311664 is about 25559.9621282975. The cubic root of 653311664 is about 867.7077385375.

The spelling of 653311664 in words is "six hundred fifty-three million, three hundred eleven thousand, six hundred sixty-four".