20895108946 has 8 divisors (see below), whose sum is σ = 31467535344. Its totient is φ = 10405930500.

The previous prime is 20895108943. The next prime is 20895108953. The reversal of 20895108946 is 64980159802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20895108893 and 20895108902.

It is not an unprimeable number, because it can be changed into a prime (20895108943) 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, 20811360 + ... + 20812363.

It is an arithmetic number, because the mean of its divisors is an integer number (3933441918).

Almost surely, 2^20895108946 is an apocalyptic number.

20895108946 is a deficient number, since it is larger than the sum of its proper divisors (10572426398).

20895108946 is a wasteful number, since it uses less digits than its factorization.

20895108946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41623976.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 20895108946 in words is "twenty billion, eight hundred ninety-five million, one hundred eight thousand, nine hundred forty-six".