18157007196 has 48 divisors (see below), whose sum is σ = 47095265280. Its totient is φ = 6049566000.

The previous prime is 18157007191. The next prime is 18157007251. The reversal of 18157007196 is 69170075181.

18157007196 is a `hidden beast` number, since 1 + 8 + 1 + 570 + 0 + 71 + 9 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18157007191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205765 + ... + 280451.

It is an arithmetic number, because the mean of its divisors is an integer number (981151360).

Almost surely, 2^18157007196 is an apocalyptic number.

It is an amenable number.

18157007196 is an abundant number, since it is smaller than the sum of its proper divisors (28938258084).

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

18157007196 is a wasteful number, since it uses less digits than its factorization.

18157007196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76951 (or 76943 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 45.

The spelling of 18157007196 in words is "eighteen billion, one hundred fifty-seven million, seven thousand, one hundred ninety-six".