18140122800 has 120 divisors (see below), whose sum is σ = 64565438480. Its totient is φ = 4837363200.

The previous prime is 18140122771. The next prime is 18140122873. The reversal of 18140122800 is 822104181.

18140122800 is a `hidden beast` number, since 181 + 401 + 2 + 2 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 829021 + ... + 850620.

Almost surely, 2^18140122800 is an apocalyptic number.

18140122800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18140122800 is an abundant number, since it is smaller than the sum of its proper divisors (46425315680).

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

18140122800 is a wasteful number, since it uses less digits than its factorization.

18140122800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679668 (or 1679651 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

Adding to 18140122800 its reverse (822104181), we get a palindrome (18962226981).

The spelling of 18140122800 in words is "eighteen billion, one hundred forty million, one hundred twenty-two thousand, eight hundred".