1325612564660 has 24 divisors (see below), whose sum is σ = 2783877949440. Its totient is φ = 530227585184.

The previous prime is 1325612564657. The next prime is 1325612564671. The reversal of 1325612564660 is 664652165231.

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, 457844 + ... + 1691403.

It is an arithmetic number, because the mean of its divisors is an integer number (115994914560).

Almost surely, 2^{1325612564660} is an apocalyptic number.

1325612564660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325612564660 is an abundant number, since it is smaller than the sum of its proper divisors (1458265384780).

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

1325612564660 is a wasteful number, since it uses less digits than its factorization.

1325612564660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180095 (or 2180093 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 1325612564660 in words is "one trillion, three hundred twenty-five billion, six hundred twelve million, five hundred sixty-four thousand, six hundred sixty".