20166674 has 16 divisors (see below), whose sum is σ = 33245856. Its totient is φ = 9098400.

The previous prime is 20166667. The next prime is 20166683. The reversal of 20166674 is 47666102.

It is a self number, because there is not a number n which added to its sum of digits gives 20166674.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332 + ... + 6359.

It is an arithmetic number, because the mean of its divisors is an integer number (2077866).

Almost surely, 2^20166674 is an apocalyptic number.

20166674 is a deficient number, since it is larger than the sum of its proper divisors (13079182).

20166674 is a wasteful number, since it uses less digits than its factorization.

20166674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6841.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20166674 is about 4490.7320115990. The cubic root of 20166674 is about 272.1937147311.

The spelling of 20166674 in words is "twenty million, one hundred sixty-six thousand, six hundred seventy-four".