20702585733812 has 24 divisors (see below), whose sum is σ = 37403481669120. Its totient is φ = 10015970654880.

The previous prime is 20702585733803. The next prime is 20702585733833. The reversal of 20702585733812 is 21833758520702.

It is a super-2 number, since 2×20702585733812² (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, 10861088 + ... + 12624119.

It is an arithmetic number, because the mean of its divisors is an integer number (1558478402880).

Almost surely, 2^{20702585733812} is an apocalyptic number.

It is an amenable number.

20702585733812 is a deficient number, since it is larger than the sum of its proper divisors (16700895935308).

20702585733812 is a wasteful number, since it uses less digits than its factorization.

20702585733812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23492351 (or 23492349 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 53.

The spelling of 20702585733812 in words is "twenty trillion, seven hundred two billion, five hundred eighty-five million, seven hundred thirty-three thousand, eight hundred twelve".