15412618406668 has 24 divisors (see below), whose sum is σ = 31347698457600. Its totient is φ = 6493451821968.

The previous prime is 15412618406657. The next prime is 15412618406681. The reversal of 15412618406668 is 86660481621451.

It is a super-2 number, since 2×15412618406668² (a number of 27 digits) contains 22 as substring.

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, 4664834428 + ... + 4664837731.

It is an arithmetic number, because the mean of its divisors is an integer number (1306154102400).

Almost surely, 2^{15412618406668} is an apocalyptic number.

It is an amenable number.

15412618406668 is an abundant number, since it is smaller than the sum of its proper divisors (15935080050932).

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

15412618406668 is a wasteful number, since it uses less digits than its factorization.

15412618406668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9329672229 (or 9329672227 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 58.

The spelling of 15412618406668 in words is "fifteen trillion, four hundred twelve billion, six hundred eighteen million, four hundred six thousand, six hundred sixty-eight".