653673646461 has 24 divisors (see below), whose sum is σ = 958516814752. Its totient is φ = 395952559200.

The previous prime is 653673646447. The next prime is 653673646469. The reversal of 653673646461 is 164646376356.

It is not a de Polignac number, because 653673646461 - 2²² = 653669452157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653673646469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191730 + ... + 1159356.

Almost surely, 2^653673646461 is an apocalyptic number.

It is an amenable number.

653673646461 is a deficient number, since it is larger than the sum of its proper divisors (304843168291).

653673646461 is a wasteful number, since it uses less digits than its factorization.

653673646461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969513 (or 969502 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 57.

The spelling of 653673646461 in words is "six hundred fifty-three billion, six hundred seventy-three million, six hundred forty-six thousand, four hundred sixty-one".