18244651105 has 16 divisors (see below), whose sum is σ = 23269633920. Its totient is φ = 13693269888.

The previous prime is 18244651099. The next prime is 18244651121. The reversal of 18244651105 is 50115644281.

It is a cyclic number.

It is not a de Polignac number, because 18244651105 - 2³ = 18244651097 is a prime.

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, 922492 + ... + 942061.

It is an arithmetic number, because the mean of its divisors is an integer number (1454352120).

Almost surely, 2^18244651105 is an apocalyptic number.

It is an amenable number.

18244651105 is a deficient number, since it is larger than the sum of its proper divisors (5024982815).

18244651105 is a wasteful number, since it uses less digits than its factorization.

18244651105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864680.

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 18244651105 in words is "eighteen billion, two hundred forty-four million, six hundred fifty-one thousand, one hundred five".