66067666704 has 240 divisors, whose sum is σ = 218716417920. Its totient is φ = 18421032960.

The previous prime is 66067666633. The next prime is 66067666711. The reversal of 66067666704 is 40766676066.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 777684 + ... + 858444.

It is an arithmetic number, because the mean of its divisors is an integer number (911318408).

Almost surely, 2^66067666704 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 66067666704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109358208960).

66067666704 is an abundant number, since it is smaller than the sum of its proper divisors (152648751216).

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

66067666704 is a wasteful number, since it uses less digits than its factorization.

66067666704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80830 (or 80821 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 54.

The spelling of 66067666704 in words is "sixty-six billion, sixty-seven million, six hundred sixty-six thousand, seven hundred four".