653612103648 has 144 divisors (see below), whose sum is σ = 2192763396096. Its totient is φ = 180722223360.

The previous prime is 653612103643. The next prime is 653612103649. The reversal of 653612103648 is 846301216356.

653612103648 is a `hidden beast` number, since 6 + 5 + 361 + 210 + 36 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653612103643) 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, 5166736 + ... + 5291727.

It is an arithmetic number, because the mean of its divisors is an integer number (15227523584).

Almost surely, 2^653612103648 is an apocalyptic number.

It is an amenable number.

653612103648 is an abundant number, since it is smaller than the sum of its proper divisors (1539151292448).

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

653612103648 is a wasteful number, since it uses less digits than its factorization.

653612103648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10458517 (or 10458506 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 653612103648 in words is "six hundred fifty-three billion, six hundred twelve million, one hundred three thousand, six hundred forty-eight".