16694434374 has 16 divisors (see below), whose sum is σ = 33479851008. Its totient is φ = 5549647752.

The previous prime is 16694434349. The next prime is 16694434399. The reversal of 16694434374 is 47343449661.

It is an interprime number because it is at equal distance from previous prime (16694434349) and next prime (16694434399).

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, 3788542 + ... + 3792945.

It is an arithmetic number, because the mean of its divisors is an integer number (2092490688).

Almost surely, 2^16694434374 is an apocalyptic number.

16694434374 is an abundant number, since it is smaller than the sum of its proper divisors (16785416634).

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

16694434374 is a wasteful number, since it uses less digits than its factorization.

16694434374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7581859.

The product of its digits is 5225472, while the sum is 51.

The spelling of 16694434374 in words is "sixteen billion, six hundred ninety-four million, four hundred thirty-four thousand, three hundred seventy-four".