667414881340 has 48 divisors (see below), whose sum is σ = 1441054387584. Its totient is φ = 259493414400.

The previous prime is 667414881319. The next prime is 667414881359. The reversal of 667414881340 is 43188414766.

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 15 ways as a sum of consecutive naturals, for example, 1279479 + ... + 1723918.

It is an arithmetic number, because the mean of its divisors is an integer number (30021966408).

Almost surely, 2^667414881340 is an apocalyptic number.

It is an amenable number.

667414881340 is an abundant number, since it is smaller than the sum of its proper divisors (773639506244).

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

667414881340 is a wasteful number, since it uses less digits than its factorization.

667414881340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003718 (or 3003716 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 667414881340 in words is "six hundred sixty-seven billion, four hundred fourteen million, eight hundred eighty-one thousand, three hundred forty".