18145107776 has 28 divisors (see below), whose sum is σ = 36019008480. Its totient is φ = 9069452160.

The previous prime is 18145107731. The next prime is 18145107797. The reversal of 18145107776 is 67770154181.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18145107776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146261 + ... + 240171.

It is an arithmetic number, because the mean of its divisors is an integer number (1286393160).

Almost surely, 2^18145107776 is an apocalyptic number.

18145107776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18145107776 is a deficient number, since it is larger than the sum of its proper divisors (17873900704).

18145107776 is an equidigital number, since it uses as much as digits as its factorization.

18145107776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96942 (or 96932 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 47.

The spelling of 18145107776 in words is "eighteen billion, one hundred forty-five million, one hundred seven thousand, seven hundred seventy-six".