667670422804 has 36 divisors (see below), whose sum is σ = 1482748606080. Its totient is φ = 260131332720.

The previous prime is 667670422789. The next prime is 667670422873. The reversal of 667670422804 is 408224076766.

It is a happy number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154837924 + ... + 154842235.

It is an arithmetic number, because the mean of its divisors is an integer number (41187461280).

Almost surely, 2^667670422804 is an apocalyptic number.

It is an amenable number.

667670422804 is an abundant number, since it is smaller than the sum of its proper divisors (815078183276).

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

667670422804 is a wasteful number, since it uses less digits than its factorization.

667670422804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309680188 (or 309680179 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 667670422804 in words is "six hundred sixty-seven billion, six hundred seventy million, four hundred twenty-two thousand, eight hundred four".