20502910784196 has 81 divisors (see below), whose sum is σ = 52724233097263. Its totient is φ = 6717942690960.

The previous prime is 20502910784183. The next prime is 20502910784201. The reversal of 20502910784196 is 69148701920502.

It is a happy number.

The square root of 20502910784196 is 4528014.

It is a perfect power (a square), and thus also a powerful number.

20502910784196 is a `hidden beast` number, since 2 + 0 + 502 + 9 + 1 + 0 + 7 + 8 + 41 + 96 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1602910561 + ... + 1602923351.

Almost surely, 2^{20502910784196} is an apocalyptic number.

20502910784196 is the 4528014-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20502910784196

20502910784196 is an abundant number, since it is smaller than the sum of its proper divisors (32221322313067).

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

20502910784196 is an frugal number, since it uses more digits than its factorization.

20502910784196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25710 (or 12855 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

It can be divided in two parts, 205029 and 10784196, that added together give a square (10989225 = 3315²).

The spelling of 20502910784196 in words is "twenty trillion, five hundred two billion, nine hundred ten million, seven hundred eighty-four thousand, one hundred ninety-six".