1398312180166 has 16 divisors (see below), whose sum is σ = 2343955673808. Its totient is φ = 620094092800.

The previous prime is 1398312180163. The next prime is 1398312180191. The reversal of 1398312180166 is 6610812138931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398312180163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775116715 + ... + 775118518.

It is an arithmetic number, because the mean of its divisors is an integer number (146497229613).

Almost surely, 2^{1398312180166} is an apocalyptic number.

1398312180166 is a deficient number, since it is larger than the sum of its proper divisors (945643493642).

1398312180166 is a wasteful number, since it uses less digits than its factorization.

1398312180166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550235287.

The product of its (nonzero) digits is 373248, while the sum is 49.

The spelling of 1398312180166 in words is "one trillion, three hundred ninety-eight billion, three hundred twelve million, one hundred eighty thousand, one hundred sixty-six".