18444075160 has 32 divisors (see below), whose sum is σ = 47427622560. Its totient is φ = 6323682816.

The previous prime is 18444075113. The next prime is 18444075161. The reversal of 18444075160 is 6157044481.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18444075161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32935569 + ... + 32936128.

It is an arithmetic number, because the mean of its divisors is an integer number (1482113205).

Almost surely, 2^18444075160 is an apocalyptic number.

18444075160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18444075160 is an abundant number, since it is smaller than the sum of its proper divisors (28983547400).

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

18444075160 is a wasteful number, since it uses less digits than its factorization.

18444075160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65871715 (or 65871711 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 18444075160 in words is "eighteen billion, four hundred forty-four million, seventy-five thousand, one hundred sixty".