20196088785 has 48 divisors (see below), whose sum is σ = 36186928128. Its totient is φ = 10409040000.

The previous prime is 20196088777. The next prime is 20196088789. The reversal of 20196088785 is 58788069102.

20196088785 is a `hidden beast` number, since 20 + 1 + 9 + 608 + 8 + 7 + 8 + 5 = 666.

It is not a de Polignac number, because 20196088785 - 2³ = 20196088777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20196088789) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1012660 + ... + 1032410.

It is an arithmetic number, because the mean of its divisors is an integer number (753894336).

Almost surely, 2^20196088785 is an apocalyptic number.

It is an amenable number.

20196088785 is a deficient number, since it is larger than the sum of its proper divisors (15990839343).

20196088785 is a wasteful number, since it uses less digits than its factorization.

20196088785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20526 (or 20523 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 20196088785 in words is "twenty billion, one hundred ninety-six million, eighty-eight thousand, seven hundred eighty-five".