667375573767 has 32 divisors (see below), whose sum is σ = 1029982894080. Its totient is φ = 376472828160.

The previous prime is 667375573757. The next prime is 667375573769. The reversal of 667375573767 is 767375573766.

It is not a de Polignac number, because 667375573767 - 2¹⁵ = 667375540999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667375573769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12384093 + ... + 12437865.

It is an arithmetic number, because the mean of its divisors is an integer number (32186965440).

Almost surely, 2^667375573767 is an apocalyptic number.

667375573767 is a deficient number, since it is larger than the sum of its proper divisors (362607320313).

667375573767 is a wasteful number, since it uses less digits than its factorization.

667375573767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61343.

The product of its digits is 816820200, while the sum is 69.

Subtracting 667375573767 from its reverse (767375573766), we obtain a palindrome (99999999999).

The spelling of 667375573767 in words is "six hundred sixty-seven billion, three hundred seventy-five million, five hundred seventy-three thousand, seven hundred sixty-seven".