66734074000664 has 16 divisors (see below), whose sum is σ = 143001587144400. Its totient is φ = 28600317428832.

The previous prime is 66734074000661. The next prime is 66734074000681. The reversal of 66734074000664 is 46600047043766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66734074000661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595839946379 + ... + 595839946490.

It is an arithmetic number, because the mean of its divisors is an integer number (8937599196525).

Almost surely, 2^{66734074000664} is an apocalyptic number.

It is an amenable number.

66734074000664 is an abundant number, since it is smaller than the sum of its proper divisors (76267513143736).

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

66734074000664 is a wasteful number, since it uses less digits than its factorization.

66734074000664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191679892882 (or 1191679892878 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 53.

The spelling of 66734074000664 in words is "sixty-six trillion, seven hundred thirty-four billion, seventy-four million, six hundred sixty-four", and thus it is an aban number.