653406401264 has 40 divisors (see below), whose sum is σ = 1366569632160. Its totient is φ = 301722891008.

The previous prime is 653406401233. The next prime is 653406401309. The reversal of 653406401264 is 462104604356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30602447 + ... + 30623790.

It is an arithmetic number, because the mean of its divisors is an integer number (34164240804).

Almost surely, 2^653406401264 is an apocalyptic number.

It is an amenable number.

653406401264 is an abundant number, since it is smaller than the sum of its proper divisors (713163230896).

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

653406401264 is a wasteful number, since it uses less digits than its factorization.

653406401264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61226297 (or 61226291 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 653406401264 in words is "six hundred fifty-three billion, four hundred six million, four hundred one thousand, two hundred sixty-four".