653661468 has 24 divisors (see below), whose sum is σ = 1694678160. Its totient is φ = 217887120.

The previous prime is 653661461. The next prime is 653661497. The reversal of 653661468 is 864166356.

653661468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653661461) 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, 3026103 + ... + 3026318.

It is an arithmetic number, because the mean of its divisors is an integer number (70611590).

Almost surely, 2^653661468 is an apocalyptic number.

It is an amenable number.

653661468 is an abundant number, since it is smaller than the sum of its proper divisors (1041016692).

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

653661468 is a wasteful number, since it uses less digits than its factorization.

653661468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6052434 (or 6052426 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 653661468 is about 25566.8040239683. The cubic root of 653661468 is about 867.8625770818.

The spelling of 653661468 in words is "six hundred fifty-three million, six hundred sixty-one thousand, four hundred sixty-eight".