667403443711 has 4 divisors (see below), whose sum is σ = 667776505000. Its totient is φ = 667030382424.

The previous prime is 667403443669. The next prime is 667403443723. The reversal of 667403443711 is 117344304766.

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 667403443711 - 2¹³ = 667403435519 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 (667403453711) 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, 186527961 + ... + 186531538.

It is an arithmetic number, because the mean of its divisors is an integer number (166944126250).

Almost surely, 2^667403443711 is an apocalyptic number.

667403443711 is a deficient number, since it is larger than the sum of its proper divisors (373061289).

667403443711 is a wasteful number, since it uses less digits than its factorization.

667403443711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373061288.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 667403443711 in words is "six hundred sixty-seven billion, four hundred three million, four hundred forty-three thousand, seven hundred eleven".