12645500620084 has 24 divisors (see below), whose sum is σ = 23511339375048. Its totient is φ = 5930513832960.

The previous prime is 12645500620063. The next prime is 12645500620099. The reversal of 12645500620084 is 48002600554621.

It can be written as a sum of positive squares in 4 ways, for example, as 4685371943184 + 7960128676900 = 2164572^2 + 2821370^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12645500620084.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317323497 + ... + 317363344.

It is an arithmetic number, because the mean of its divisors is an integer number (979639140627).

Almost surely, 2^{12645500620084} is an apocalyptic number.

It is an amenable number.

12645500620084 is a deficient number, since it is larger than the sum of its proper divisors (10865838754964).

12645500620084 is a wasteful number, since it uses less digits than its factorization.

12645500620084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634687155 (or 634687153 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 12645500620084 in words is "twelve trillion, six hundred forty-five billion, five hundred million, six hundred twenty thousand, eighty-four".