667437374411 has 4 divisors (see below), whose sum is σ = 667496299800. Its totient is φ = 667378449024.

The previous prime is 667437374407. The next prime is 667437374437. The reversal of 667437374411 is 114473734766.

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 667437374411 - 2² = 667437374407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667437674411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29445701 + ... + 29468358.

It is an arithmetic number, because the mean of its divisors is an integer number (166874074950).

Almost surely, 2^667437374411 is an apocalyptic number.

667437374411 is a deficient number, since it is larger than the sum of its proper divisors (58925389).

667437374411 is a wasteful number, since it uses less digits than its factorization.

667437374411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58925388.

The product of its digits is 7112448, while the sum is 53.

The spelling of 667437374411 in words is "six hundred sixty-seven billion, four hundred thirty-seven million, three hundred seventy-four thousand, four hundred eleven".