20015702712766 has 16 divisors (see below), whose sum is σ = 31786421720400. Its totient is φ = 9426318159168.

The previous prime is 20015702712659. The next prime is 20015702712773. The reversal of 20015702712766 is 66721720751002.

It is a super-2 number, since 2×20015702712766² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 1522331631 + ... + 1522344778.

It is an arithmetic number, because the mean of its divisors is an integer number (1986651357525).

Almost surely, 2^{20015702712766} is an apocalyptic number.

20015702712766 is a deficient number, since it is larger than the sum of its proper divisors (11770719007634).

20015702712766 is a wasteful number, since it uses less digits than its factorization.

20015702712766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044676603.

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 20015702712766 in words is "twenty trillion, fifteen billion, seven hundred two million, seven hundred twelve thousand, seven hundred sixty-six".