66967886346 has 32 divisors (see below), whose sum is σ = 134712004608. Its totient is φ = 22193387760.

The previous prime is 66967886341. The next prime is 66967886387. The reversal of 66967886346 is 64368876966.

It is not an unprimeable number, because it can be changed into a prime (66967886341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2170101 + ... + 2200743.

It is an arithmetic number, because the mean of its divisors is an integer number (4209750144).

Almost surely, 2^66967886346 is an apocalyptic number.

66967886346 is an abundant number, since it is smaller than the sum of its proper divisors (67744118262).

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

66967886346 is a wasteful number, since it uses less digits than its factorization.

66967886346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32746.

The product of its digits is 376233984, while the sum is 69.

The spelling of 66967886346 in words is "sixty-six billion, nine hundred sixty-seven million, eight hundred eighty-six thousand, three hundred forty-six".