667411075487 has 8 divisors (see below), whose sum is σ = 723574219200. Its totient is φ = 611937050400.

The previous prime is 667411075477. The next prime is 667411075511. The reversal of 667411075487 is 784570114766.

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

It is not a de Polignac number, because 667411075487 - 2²⁴ = 667394298271 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 (667411075427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172277639 + ... + 172281512.

It is an arithmetic number, because the mean of its divisors is an integer number (90446777400).

Almost surely, 2^667411075487 is an apocalyptic number.

667411075487 is a deficient number, since it is larger than the sum of its proper divisors (56163143713).

667411075487 is a wasteful number, since it uses less digits than its factorization.

667411075487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344559313.

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 667411075487 in words is "six hundred sixty-seven billion, four hundred eleven million, seventy-five thousand, four hundred eighty-seven".