66898968914 has 8 divisors (see below), whose sum is σ = 100470385920. Its totient is φ = 33408840276.

The previous prime is 66898968907. The next prime is 66898968937. The reversal of 66898968914 is 41986989866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20320034 + ... + 20323325.

It is an arithmetic number, because the mean of its divisors is an integer number (12558798240).

Almost surely, 2^66898968914 is an apocalyptic number.

66898968914 is a deficient number, since it is larger than the sum of its proper divisors (33571417006).

66898968914 is a wasteful number, since it uses less digits than its factorization.

66898968914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40644184.

The product of its digits is 322486272, while the sum is 74.

The spelling of 66898968914 in words is "sixty-six billion, eight hundred ninety-eight million, nine hundred sixty-eight thousand, nine hundred fourteen".