18825095663 has 16 divisors (see below), whose sum is σ = 20780291232. Its totient is φ = 17052481600.

The previous prime is 18825095651. The next prime is 18825095687. The reversal of 18825095663 is 36659052881.

It is not a de Polignac number, because 18825095663 - 2¹⁴ = 18825079279 is a prime.

It is a super-2 number, since 2×18825095663² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18825095363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348845 + ... + 399177.

It is an arithmetic number, because the mean of its divisors is an integer number (1298768202).

Almost surely, 2^18825095663 is an apocalyptic number.

18825095663 is a deficient number, since it is larger than the sum of its proper divisors (1955195569).

18825095663 is an equidigital number, since it uses as much as digits as its factorization.

18825095663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50647 (or 50625 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 18825095663 in words is "eighteen billion, eight hundred twenty-five million, ninety-five thousand, six hundred sixty-three".