667422465885 has 48 divisors (see below), whose sum is σ = 1352879409024. Its totient is φ = 298011885696.

The previous prime is 667422465883. The next prime is 667422465893. The reversal of 667422465885 is 588564224766.

667422465885 is a `hidden beast` number, since 6 + 6 + 7 + 4 + 2 + 2 + 46 + 588 + 5 = 666.

It is not a de Polignac number, because 667422465885 - 2¹ = 667422465883 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667422465883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24623682 + ... + 24650771.

It is an arithmetic number, because the mean of its divisors is an integer number (28184987688).

Almost surely, 2^667422465885 is an apocalyptic number.

It is an amenable number.

667422465885 is an abundant number, since it is smaller than the sum of its proper divisors (685456943139).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667422465885 is a wasteful number, since it uses less digits than its factorization.

667422465885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49274514 (or 49274511 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 63.

The spelling of 667422465885 in words is "six hundred sixty-seven billion, four hundred twenty-two million, four hundred sixty-five thousand, eight hundred eighty-five".