20195113736 has 32 divisors (see below), whose sum is σ = 43921151040. Its totient is φ = 8525867328.

The previous prime is 20195113733. The next prime is 20195113747. The reversal of 20195113736 is 63731159102.

It is a self number, because there is not a number n which added to its sum of digits gives 20195113736.

It is not an unprimeable number, because it can be changed into a prime (20195113733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2687495 + ... + 2694998.

It is an arithmetic number, because the mean of its divisors is an integer number (1372535970).

Almost surely, 2^20195113736 is an apocalyptic number.

It is an amenable number.

20195113736 is an abundant number, since it is smaller than the sum of its proper divisors (23726037304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20195113736 is a wasteful number, since it uses less digits than its factorization.

20195113736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382573 (or 5382569 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The spelling of 20195113736 in words is "twenty billion, one hundred ninety-five million, one hundred thirteen thousand, seven hundred thirty-six".