20396397159804 has 48 divisors (see below), whose sum is σ = 48879876231200. Its totient is φ = 6614773860096.

The previous prime is 20396397159781. The next prime is 20396397159823. The reversal of 20396397159804 is 40895179369302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9925542 + ... + 11802930.

It is a 1-persistent number, because it is pandigital, but 2⋅20396397159804 = 40792794319608 is not.

Almost surely, 2^{20396397159804} is an apocalyptic number.

It is an amenable number.

20396397159804 is an abundant number, since it is smaller than the sum of its proper divisors (28483479071396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20396397159804 is a wasteful number, since it uses less digits than its factorization.

20396397159804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901902 (or 1901900 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 66.

The spelling of 20396397159804 in words is "twenty trillion, three hundred ninety-six billion, three hundred ninety-seven million, one hundred fifty-nine thousand, eight hundred four".