12645311416740 has 72 divisors (see below), whose sum is σ = 38601759651000. Its totient is φ = 3350604801024.

The previous prime is 12645311416739. The next prime is 12645311416769. The reversal of 12645311416740 is 4761411354621.

12645311416740 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 531 + 1 + 41 + 6 + 74 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1931721938496 + 10713589478244 = 1389864^2 + 3273162^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 223703365 + ... + 223759884.

Almost surely, 2^{12645311416740} is an apocalyptic number.

12645311416740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12645311416740 is an abundant number, since it is smaller than the sum of its proper divisors (25956448234260).

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

12645311416740 is a wasteful number, since it uses less digits than its factorization.

12645311416740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447463421 (or 447463416 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 12645311416740 in words is "twelve trillion, six hundred forty-five billion, three hundred eleven million, four hundred sixteen thousand, seven hundred forty".