653620423005 has 64 divisors (see below), whose sum is σ = 1334344780800. Its totient is φ = 300227549760.

The previous prime is 653620422989. The next prime is 653620423007. The reversal of 653620423005 is 500324026356.

653620423005 is a `hidden beast` number, since 6 + 5 + 3 + 620 + 4 + 23 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 653620423005 - 2⁴ = 653620422989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653620423007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11554639 + ... + 11611068.

It is an arithmetic number, because the mean of its divisors is an integer number (20849137200).

Almost surely, 2^653620423005 is an apocalyptic number.

It is an amenable number.

653620423005 is an abundant number, since it is smaller than the sum of its proper divisors (680724357795).

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

653620423005 is a wasteful number, since it uses less digits than its factorization.

653620423005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23165751 (or 23165745 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 653620423005 in words is "six hundred fifty-three billion, six hundred twenty million, four hundred twenty-three thousand, five".