653721472132 has 12 divisors (see below), whose sum is σ = 1144105078480. Its totient is φ = 326834306856.

The previous prime is 653721472093. The next prime is 653721472139. The reversal of 653721472132 is 231274127356.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (653721472139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6551598 + ... + 6650629.

Almost surely, 2^653721472132 is an apocalyptic number.

It is an amenable number.

653721472132 is a deficient number, since it is larger than the sum of its proper divisors (490383606348).

653721472132 is a wasteful number, since it uses less digits than its factorization.

653721472132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13214610 (or 13214608 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

Adding to 653721472132 its reverse (231274127356), we get a palindrome (884995599488).

The spelling of 653721472132 in words is "six hundred fifty-three billion, seven hundred twenty-one million, four hundred seventy-two thousand, one hundred thirty-two".