16661669334 has 16 divisors (see below), whose sum is σ = 33333565440. Its totient is φ = 5552185320.

The previous prime is 16661669317. The next prime is 16661669351. The reversal of 16661669334 is 43396616661.

It is an interprime number because it is at equal distance from previous prime (16661669317) and next prime (16661669351).

It is a super-2 number, since 2×16661669334² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404854 + ... + 444105.

It is an arithmetic number, because the mean of its divisors is an integer number (2083347840).

Almost surely, 2^16661669334 is an apocalyptic number.

16661669334 is an abundant number, since it is smaller than the sum of its proper divisors (16671896106).

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

16661669334 is a wasteful number, since it uses less digits than its factorization.

16661669334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852235.

The product of its digits is 2519424, while the sum is 51.

The spelling of 16661669334 in words is "sixteen billion, six hundred sixty-one million, six hundred sixty-nine thousand, three hundred thirty-four".