20502895195 has 4 divisors (see below), whose sum is σ = 24603474240. Its totient is φ = 16402316152.

The previous prime is 20502895183. The next prime is 20502895199. The reversal of 20502895195 is 59159820502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59159820502 = 2 ⋅29579910251.

It is a cyclic number.

It is not a de Polignac number, because 20502895195 - 2⁵ = 20502895163 is a prime.

It is a super-2 number, since 2×20502895195² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20502895199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2050289515 + ... + 2050289524.

It is an arithmetic number, because the mean of its divisors is an integer number (6150868560).

Almost surely, 2^20502895195 is an apocalyptic number.

20502895195 is a deficient number, since it is larger than the sum of its proper divisors (4100579045).

20502895195 is an equidigital number, since it uses as much as digits as its factorization.

20502895195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100579044.

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 20502895195 in words is "twenty billion, five hundred two million, eight hundred ninety-five thousand, one hundred ninety-five".