667710347467 has 4 divisors (see below), whose sum is σ = 668799598240. Its totient is φ = 666621096696.

The previous prime is 667710347419. The next prime is 667710347483. The reversal of 667710347467 is 764743017766.

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 667710347467 - 2¹⁵ = 667710314699 is a prime.

It is a super-2 number, since 2×667710347467² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667710347407) 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, 544624467 + ... + 544625692.

It is an arithmetic number, because the mean of its divisors is an integer number (167199899560).

Almost surely, 2^667710347467 is an apocalyptic number.

667710347467 is a deficient number, since it is larger than the sum of its proper divisors (1089250773).

667710347467 is a wasteful number, since it uses less digits than its factorization.

667710347467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089250772.

The product of its (nonzero) digits is 24893568, while the sum is 58.

The spelling of 667710347467 in words is "six hundred sixty-seven billion, seven hundred ten million, three hundred forty-seven thousand, four hundred sixty-seven".