667231405104 has 160 divisors (see below), whose sum is σ = 1920597073920. Its totient is φ = 197907897600.

The previous prime is 667231405091. The next prime is 667231405147. The reversal of 667231405104 is 401504132766.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5146809 + ... + 5274855.

It is an arithmetic number, because the mean of its divisors is an integer number (12003731712).

Almost surely, 2^667231405104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667231405104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960298536960).

667231405104 is an abundant number, since it is smaller than the sum of its proper divisors (1253365668816).

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

667231405104 is a wasteful number, since it uses less digits than its factorization.

667231405104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128279 (or 128273 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 667231405104 in words is "six hundred sixty-seven billion, two hundred thirty-one million, four hundred five thousand, one hundred four".