16680774 has 32 divisors (see below), whose sum is σ = 38537856. Its totient is φ = 4757120.

The previous prime is 16680767. The next prime is 16680787. The reversal of 16680774 is 47708661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6312 + ... + 8555.

It is an arithmetic number, because the mean of its divisors is an integer number (1204308).

Almost surely, 2^16680774 is an apocalyptic number.

16680774 is an abundant number, since it is smaller than the sum of its proper divisors (21857082).

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

16680774 is a wasteful number, since it uses less digits than its factorization.

16680774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14900.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 16680774 is about 4084.2103275909. The cubic root of 16680774 is about 255.5085276903.

The spelling of 16680774 in words is "sixteen million, six hundred eighty thousand, seven hundred seventy-four".