168404037412 has 24 divisors (see below), whose sum is σ = 317395080576. Its totient is φ = 77720473248.

The previous prime is 168404037401. The next prime is 168404037491. The reversal of 168404037412 is 214730404861.

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, 926853 + ... + 1093555.

It is an arithmetic number, because the mean of its divisors is an integer number (13224795024).

Almost surely, 2^168404037412 is an apocalyptic number.

It is an amenable number.

168404037412 is a deficient number, since it is larger than the sum of its proper divisors (148991043164).

168404037412 is a wasteful number, since it uses less digits than its factorization.

168404037412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186147 (or 186145 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 168404037412 in words is "one hundred sixty-eight billion, four hundred four million, thirty-seven thousand, four hundred twelve".