667370500166247 has 4 divisors (see below), whose sum is σ = 889827333555000. Its totient is φ = 444913666777496.

The previous prime is 667370500166243. The next prime is 667370500166269. The reversal of 667370500166247 is 742661005073766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 667370500166247 - 2² = 667370500166243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667370500166243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111228416694372 + ... + 111228416694377.

It is an arithmetic number, because the mean of its divisors is an integer number (222456833388750).

Almost surely, 2^{667370500166247} is an apocalyptic number.

667370500166247 is a deficient number, since it is larger than the sum of its proper divisors (222456833388753).

667370500166247 is a wasteful number, since it uses less digits than its factorization.

667370500166247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222456833388752.

The product of its (nonzero) digits is 53343360, while the sum is 60.

The spelling of 667370500166247 in words is "six hundred sixty-seven trillion, three hundred seventy billion, five hundred million, one hundred sixty-six thousand, two hundred forty-seven".