18066944160 has 96 divisors (see below), whose sum is σ = 63234319680. Its totient is φ = 4817850624.

The previous prime is 18066944131. The next prime is 18066944173. The reversal of 18066944160 is 6144966081.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2086762 + ... + 2095401.

It is an arithmetic number, because the mean of its divisors is an integer number (658690830).

Almost surely, 2^18066944160 is an apocalyptic number.

18066944160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18066944160 is an abundant number, since it is smaller than the sum of its proper divisors (45167375520).

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

18066944160 is a wasteful number, since it uses less digits than its factorization.

18066944160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182187 (or 4182173 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 18066944160 in words is "eighteen billion, sixty-six million, nine hundred forty-four thousand, one hundred sixty".