667210232280 has 128 divisors (see below), whose sum is σ = 2017822752000. Its totient is φ = 176484672000.

The previous prime is 667210232279. The next prime is 667210232303. The reversal of 667210232280 is 82232012766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40061955 + ... + 40078605.

It is an arithmetic number, because the mean of its divisors is an integer number (15764240250).

Almost surely, 2^667210232280 is an apocalyptic number.

667210232280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667210232280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008911376000).

667210232280 is an abundant number, since it is smaller than the sum of its proper divisors (1350612519720).

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

667210232280 is a wasteful number, since it uses less digits than its factorization.

667210232280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19345 (or 19341 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 667210232280 in words is "six hundred sixty-seven billion, two hundred ten million, two hundred thirty-two thousand, two hundred eighty".