20967662760866 has 16 divisors (see below), whose sum is σ = 33214359455424. Its totient is φ = 9907193193744.

The previous prime is 20967662760859. The next prime is 20967662760959. The reversal of 20967662760866 is 66806726676902.

It is a self number, because there is not a number n which added to its sum of digits gives 20967662760866.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2745892301 + ... + 2745899936.

It is an arithmetic number, because the mean of its divisors is an integer number (2075897465964).

Almost surely, 2^{20967662760866} is an apocalyptic number.

20967662760866 is a deficient number, since it is larger than the sum of its proper divisors (12246696694558).

20967662760866 is a wasteful number, since it uses less digits than its factorization.

20967662760866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491792345.

The product of its (nonzero) digits is 658409472, while the sum is 71.

The spelling of 20967662760866 in words is "twenty trillion, nine hundred sixty-seven billion, six hundred sixty-two million, seven hundred sixty thousand, eight hundred sixty-six".