66935150868 has 12 divisors (see below), whose sum is σ = 156182018720. Its totient is φ = 22311716952.

The previous prime is 66935150839. The next prime is 66935150869. The reversal of 66935150868 is 86805153966.

66935150868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66935150869) 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, 2788964608 + ... + 2788964631.

Almost surely, 2^66935150868 is an apocalyptic number.

It is an amenable number.

66935150868 is an abundant number, since it is smaller than the sum of its proper divisors (89246867852).

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

66935150868 is a wasteful number, since it uses less digits than its factorization.

66935150868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577929246 (or 5577929244 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 66935150868 in words is "sixty-six billion, nine hundred thirty-five million, one hundred fifty thousand, eight hundred sixty-eight".