20305164195 has 12 divisors (see below), whose sum is σ = 35195618016. Its totient is φ = 10829420880.

The previous prime is 20305164181. The next prime is 20305164223. The reversal of 20305164195 is 59146150302.

20305164195 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 5 + 1 + 641 + 9 + 5 = 666.

It is not a de Polignac number, because 20305164195 - 2⁴ = 20305164179 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225612891 + ... + 225612980.

It is an arithmetic number, because the mean of its divisors is an integer number (2932968168).

Almost surely, 2^20305164195 is an apocalyptic number.

20305164195 is a deficient number, since it is larger than the sum of its proper divisors (14890453821).

20305164195 is a wasteful number, since it uses less digits than its factorization.

20305164195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451225882 (or 451225879 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 20305164195 in words is "twenty billion, three hundred five million, one hundred sixty-four thousand, one hundred ninety-five".