18930162195 has 48 divisors (see below), whose sum is σ = 37665089280. Its totient is φ = 8615633472.

The previous prime is 18930162191. The next prime is 18930162221. The reversal of 18930162195 is 59126103981.

18930162195 is a `hidden beast` number, since 18 + 9 + 3 + 0 + 1 + 621 + 9 + 5 = 666.

It is not a de Polignac number, because 18930162195 - 2² = 18930162191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 18930162195.

It is not an unprimeable number, because it can be changed into a prime (18930162191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60865 + ... + 203874.

It is an arithmetic number, because the mean of its divisors is an integer number (784689360).

Almost surely, 2^18930162195 is an apocalyptic number.

18930162195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18930162195 is a deficient number, since it is larger than the sum of its proper divisors (18734927085).

18930162195 is a wasteful number, since it uses less digits than its factorization.

18930162195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264984 (or 264981 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 18930162195 in words is "eighteen billion, nine hundred thirty million, one hundred sixty-two thousand, one hundred ninety-five".