20590195095 has 12 divisors (see below), whose sum is σ = 35689671576. Its totient is φ = 10981437360.

The previous prime is 20590195057. The next prime is 20590195097. The reversal of 20590195095 is 59059109502.

20590195095 is a `hidden beast` number, since 2 + 0 + 590 + 1 + 9 + 50 + 9 + 5 = 666.

It is not a de Polignac number, because 20590195095 - 2¹⁰ = 20590194071 is a prime.

It is a super-2 number, since 2×20590195095² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 457559891 = 20590195095 / (2 + 0 + 5 + 9 + 0 + 1 + 9 + 5 + 0 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 20590195095.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20590195097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228779901 + ... + 228779990.

It is an arithmetic number, because the mean of its divisors is an integer number (2974139298).

Almost surely, 2^20590195095 is an apocalyptic number.

20590195095 is a deficient number, since it is larger than the sum of its proper divisors (15099476481).

20590195095 is a wasteful number, since it uses less digits than its factorization.

20590195095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457559902 (or 457559899 counting only the distinct ones).

The product of its (nonzero) digits is 182250, while the sum is 45.

The spelling of 20590195095 in words is "twenty billion, five hundred ninety million, one hundred ninety-five thousand, ninety-five".