164872667 has 2 divisors, whose sum is σ = 164872668. Its totient is φ = 164872666.

The previous prime is 164872661. The next prime is 164872711. The reversal of 164872667 is 766278461.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164872667 - 2²⁰ = 163824091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164872661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82436333 + 82436334.

It is an arithmetic number, because the mean of its divisors is an integer number (82436334).

Almost surely, 2^164872667 is an apocalyptic number.

164872667 is a deficient number, since it is larger than the sum of its proper divisors (1).

164872667 is an equidigital number, since it uses as much as digits as its factorization.

164872667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 47.

The square root of 164872667 is about 12840.2751917550. The cubic root of 164872667 is about 548.3395286565.

The spelling of 164872667 in words is "one hundred sixty-four million, eight hundred seventy-two thousand, six hundred sixty-seven".