20738807088616 has 8 divisors (see below), whose sum is σ = 38885263291170. Its totient is φ = 10369403544304.

The previous prime is 20738807088599. The next prime is 20738807088647. The reversal of 20738807088616 is 61688070883702.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20583370872100 + 155436216516 = 4536890^2 + 394254^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1296175443031 + ... + 1296175443046.

Almost surely, 2^{20738807088616} is an apocalyptic number.

It is an amenable number.

20738807088616 is a deficient number, since it is larger than the sum of its proper divisors (18146456202554).

20738807088616 is a wasteful number, since it uses less digits than its factorization.

20738807088616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592350886083 (or 2592350886079 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 64.

The spelling of 20738807088616 in words is "twenty trillion, seven hundred thirty-eight billion, eight hundred seven million, eighty-eight thousand, six hundred sixteen".