16668520167 has 8 divisors (see below), whose sum is σ = 23934285424. Its totient is φ = 10257550848.

The previous prime is 16668520163. The next prime is 16668520181. The reversal of 16668520167 is 76102586661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16668520167 - 2² = 16668520163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16668520163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213698938 + ... + 213699015.

It is an arithmetic number, because the mean of its divisors is an integer number (2991785678).

Almost surely, 2^16668520167 is an apocalyptic number.

16668520167 is a deficient number, since it is larger than the sum of its proper divisors (7265765257).

16668520167 is a wasteful number, since it uses less digits than its factorization.

16668520167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427397969.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 16668520167 in words is "sixteen billion, six hundred sixty-eight million, five hundred twenty thousand, one hundred sixty-seven".