20936499170 has 16 divisors (see below), whose sum is σ = 38216484288. Its totient is φ = 8256647280.

The previous prime is 20936499169. The next prime is 20936499193. The reversal of 20936499170 is 7199463902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14743304 + ... + 14744723.

It is an arithmetic number, because the mean of its divisors is an integer number (2388530268).

Almost surely, 2^20936499170 is an apocalyptic number.

20936499170 is a deficient number, since it is larger than the sum of its proper divisors (17279985118).

20936499170 is a wasteful number, since it uses less digits than its factorization.

20936499170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29488105.

The product of its (nonzero) digits is 734832, while the sum is 50.

The spelling of 20936499170 in words is "twenty billion, nine hundred thirty-six million, four hundred ninety-nine thousand, one hundred seventy".