653404505052 has 192 divisors, whose sum is σ = 1744475765760. Its totient is φ = 188812394496.

The previous prime is 653404505027. The next prime is 653404505053. The reversal of 653404505052 is 250505404356.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 653404505052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653404505053) 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, 244079538 + ... + 244082214.

It is an arithmetic number, because the mean of its divisors is an integer number (9085811280).

Almost surely, 2^653404505052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653404505052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872237882880).

653404505052 is an abundant number, since it is smaller than the sum of its proper divisors (1091071260708).

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

653404505052 is a wasteful number, since it uses less digits than its factorization.

653404505052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932 (or 3930 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 653404505052 in words is "six hundred fifty-three billion, four hundred four million, five hundred five thousand, fifty-two".