6667166667 has 16 divisors (see below), whose sum is σ = 10199976192. Its totient is φ = 3794628000.

The previous prime is 6667166657. The next prime is 6667166687. The reversal of 6667166667 is 7666617666.

It is not a de Polignac number, because 6667166667 - 2⁸ = 6667166411 is a prime.

It is a super-2 number, since 2×6667166667² = 88902222731111777778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6667166657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627168 + ... + 637709.

It is an arithmetic number, because the mean of its divisors is an integer number (637498512).

Almost surely, 2^6667166667 is an apocalyptic number.

6667166667 is a deficient number, since it is larger than the sum of its proper divisors (3532809525).

6667166667 is a wasteful number, since it uses less digits than its factorization.

6667166667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265138.

The product of its digits is 13716864, while the sum is 57.

The square root of 6667166667 is about 81652.7198995845. The cubic root of 6667166667 is about 1882.1191084186.

The spelling of 6667166667 in words is "six billion, six hundred sixty-seven million, one hundred sixty-six thousand, six hundred sixty-seven".