20194115236 has 27 divisors (see below), whose sum is σ = 36243582403. Its totient is φ = 9845103680.

The previous prime is 20194115197. The next prime is 20194115251. The reversal of 20194115236 is 63251149102.

The square root of 20194115236 is 142106.

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

It can be written as a sum of positive squares in 4 ways, for example, as 6817804900 + 13376310336 = 82570^2 + 115656^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11651826 + ... + 11653558.

Almost surely, 2^20194115236 is an apocalyptic number.

20194115236 is the 142106-th square number.

It is an amenable number.

20194115236 is a deficient number, since it is larger than the sum of its proper divisors (16049467167).

20194115236 is an frugal number, since it uses more digits than its factorization.

20194115236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552 (or 1776 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 20194115236 in words is "twenty billion, one hundred ninety-four million, one hundred fifteen thousand, two hundred thirty-six".