16664950774 has 16 divisors (see below), whose sum is σ = 27113422896. Its totient is φ = 7651052800.

The previous prime is 16664950769. The next prime is 16664950777. The reversal of 16664950774 is 47705946661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16664950777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5975992 + ... + 5978779.

It is an arithmetic number, because the mean of its divisors is an integer number (1694588931).

Almost surely, 2^16664950774 is an apocalyptic number.

16664950774 is a deficient number, since it is larger than the sum of its proper divisors (10448472122).

16664950774 is a wasteful number, since it uses less digits than its factorization.

16664950774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11954831.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 16664950774 in words is "sixteen billion, six hundred sixty-four million, nine hundred fifty thousand, seven hundred seventy-four".