66700070734008 has 256 divisors, whose sum is σ = 183874889318400. Its totient is φ = 20082142080000.

The previous prime is 66700070734007. The next prime is 66700070734009. The reversal of 66700070734008 is 80043707000766.

It is an interprime number because it is at equal distance from previous prime (66700070734007) and next prime (66700070734009).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66700070734007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 940050933 + ... + 940121883.

It is an arithmetic number, because the mean of its divisors is an integer number (718261286400).

Almost surely, 2^{66700070734008} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66700070734008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91937444659200).

66700070734008 is an abundant number, since it is smaller than the sum of its proper divisors (117174818584392).

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

66700070734008 is a wasteful number, since it uses less digits than its factorization.

66700070734008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71994 (or 71990 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 48.

The spelling of 66700070734008 in words is "sixty-six trillion, seven hundred billion, seventy million, seven hundred thirty-four thousand, eight".