667335673422 has 24 divisors (see below), whose sum is σ = 1577338864920. Its totient is φ = 202222931280.

The previous prime is 667335673393. The next prime is 667335673423. The reversal of 667335673422 is 224376533766.

667335673422 is a `hidden beast` number, since 6 + 6 + 7 + 33 + 567 + 3 + 42 + 2 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667335673423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1685190897 + ... + 1685191292.

It is an arithmetic number, because the mean of its divisors is an integer number (65722452705).

Almost surely, 2^667335673422 is an apocalyptic number.

667335673422 is an abundant number, since it is smaller than the sum of its proper divisors (910003191498).

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

667335673422 is a wasteful number, since it uses less digits than its factorization.

667335673422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370382208 (or 3370382205 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 54.

The spelling of 667335673422 in words is "six hundred sixty-seven billion, three hundred thirty-five million, six hundred seventy-three thousand, four hundred twenty-two".