667340703408 has 80 divisors (see below), whose sum is σ = 1727199452160. Its totient is φ = 222029753088.

The previous prime is 667340703401. The next prime is 667340703457. The reversal of 667340703408 is 804307043766.

It is a super-2 number, since 2×667340703408² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (667340703401) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 67491841 + ... + 67501727.

It is an arithmetic number, because the mean of its divisors is an integer number (21589993152).

Almost surely, 2^667340703408 is an apocalyptic number.

It is an amenable number.

667340703408 is an abundant number, since it is smaller than the sum of its proper divisors (1059858748752).

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

667340703408 is a wasteful number, since it uses less digits than its factorization.

667340703408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12394 (or 12388 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 667340703408 in words is "six hundred sixty-seven billion, three hundred forty million, seven hundred three thousand, four hundred eight".