653388372344 has 16 divisors (see below), whose sum is σ = 1226640353400. Its totient is φ = 326284278112.

The previous prime is 653388372337. The next prime is 653388372349. The reversal of 653388372344 is 443273883356.

It is a happy number.

It is a super-2 number, since 2×653388372344² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 653388372344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653388372349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51231734 + ... + 51244485.

Almost surely, 2^653388372344 is an apocalyptic number.

It is an amenable number.

653388372344 is a deficient number, since it is larger than the sum of its proper divisors (573251981056).

653388372344 is a wasteful number, since it uses less digits than its factorization.

653388372344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102477022 (or 102477018 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 56.

The spelling of 653388372344 in words is "six hundred fifty-three billion, three hundred eighty-eight million, three hundred seventy-two thousand, three hundred forty-four".