653644601932 has 96 divisors (see below), whose sum is σ = 1349728966656. Its totient is φ = 271175520000.

The previous prime is 653644601921. The next prime is 653644601933. The reversal of 653644601932 is 239106446356.

It is not an unprimeable number, because it can be changed into a prime (653644601933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169731807 + ... + 169735657.

It is an arithmetic number, because the mean of its divisors is an integer number (14059676736).

Almost surely, 2^653644601932 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 653644601932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674864483328).

653644601932 is an abundant number, since it is smaller than the sum of its proper divisors (696084364724).

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

653644601932 is a wasteful number, since it uses less digits than its factorization.

653644601932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287 (or 5285 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 49.

The spelling of 653644601932 in words is "six hundred fifty-three billion, six hundred forty-four million, six hundred one thousand, nine hundred thirty-two".