20771623812712 has 64 divisors (see below), whose sum is σ = 39463741054080. Its totient is φ = 10248269912832.

The previous prime is 20771623812707. The next prime is 20771623812713. The reversal of 20771623812712 is 21721832617702.

It is not an unprimeable number, because it can be changed into a prime (20771623812713) 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, 3591839373 + ... + 3591845155.

It is an arithmetic number, because the mean of its divisors is an integer number (616620953970).

Almost surely, 2^{20771623812712} is an apocalyptic number.

It is an amenable number.

20771623812712 is a deficient number, since it is larger than the sum of its proper divisors (18692117241368).

20771623812712 is a wasteful number, since it uses less digits than its factorization.

20771623812712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11482 (or 11478 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 20771623812712 in words is "twenty trillion, seven hundred seventy-one billion, six hundred twenty-three million, eight hundred twelve thousand, seven hundred twelve".