667340707068 has 96 divisors (see below), whose sum is σ = 1977462502400. Its totient is φ = 190653663168.

The previous prime is 667340707049. The next prime is 667340707081. The reversal of 667340707068 is 860707043766.

667340707068 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12461646 + ... + 12515082.

Almost surely, 2^667340707068 is an apocalyptic number.

It is an amenable number.

667340707068 is an abundant number, since it is smaller than the sum of its proper divisors (1310121795332).

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

667340707068 is a wasteful number, since it uses less digits than its factorization.

667340707068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69976 (or 69968 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 54.

The spelling of 667340707068 in words is "six hundred sixty-seven billion, three hundred forty million, seven hundred seven thousand, sixty-eight".