66960167 has 8 divisors (see below), whose sum is σ = 68473776. Its totient is φ = 65463552.

The previous prime is 66960149. The next prime is 66960191. The reversal of 66960167 is 76106966.

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

It is a cyclic number.

It is not a de Polignac number, because 66960167 - 2²² = 62765863 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 (66960137) by changing a digit.

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, 3893 + ... + 12209.

It is an arithmetic number, because the mean of its divisors is an integer number (8559222).

Almost surely, 2^66960167 is an apocalyptic number.

66960167 is a deficient number, since it is larger than the sum of its proper divisors (1513609).

66960167 is an equidigital number, since it uses as much as digits as its factorization.

66960167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8497.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 66960167 is about 8182.9192223802. The cubic root of 66960167 is about 406.0743047125.

The spelling of 66960167 in words is "sixty-six million, nine hundred sixty thousand, one hundred sixty-seven".