653433502605212 has 72 divisors (see below), whose sum is σ = 1366834745022768. Its totient is φ = 272338703884800.

The previous prime is 653433502605187. The next prime is 653433502605277. The reversal of 653433502605212 is 212506205334356.

It is a happy number.

It is a super-2 number, since 2×653433502605212² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7818989 + ... + 36986532.

It is an arithmetic number, because the mean of its divisors is an integer number (18983815903094).

Almost surely, 2^{653433502605212} is an apocalyptic number.

It is an amenable number.

653433502605212 is an abundant number, since it is smaller than the sum of its proper divisors (713401242417556).

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

653433502605212 is a wasteful number, since it uses less digits than its factorization.

653433502605212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44807587 (or 44807578 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 47.

Adding to 653433502605212 its reverse (212506205334356), we get a palindrome (865939707939568).

The spelling of 653433502605212 in words is "six hundred fifty-three trillion, four hundred thirty-three billion, five hundred two million, six hundred five thousand, two hundred twelve".