18703700166 has 32 divisors (see below), whose sum is σ = 38042484480. Its totient is φ = 6129591264.

The previous prime is 18703700117. The next prime is 18703700167. The reversal of 18703700166 is 66100730781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18703700167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22965 + ... + 194768.

It is an arithmetic number, because the mean of its divisors is an integer number (1188827640).

Almost surely, 2^18703700166 is an apocalyptic number.

18703700166 is an abundant number, since it is smaller than the sum of its proper divisors (19338784314).

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

18703700166 is a wasteful number, since it uses less digits than its factorization.

18703700166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217980.

The product of its (nonzero) digits is 42336, while the sum is 39.

The spelling of 18703700166 in words is "eighteen billion, seven hundred three million, seven hundred thousand, one hundred sixty-six".