18016577745 has 32 divisors (see below), whose sum is σ = 28915657344. Its totient is φ = 9579187200.

The previous prime is 18016577707. The next prime is 18016577771. The reversal of 18016577745 is 54777561081.

It is not a de Polignac number, because 18016577745 - 2⁶ = 18016577681 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9130579 + ... + 9132551.

It is an arithmetic number, because the mean of its divisors is an integer number (903614292).

Almost surely, 2^18016577745 is an apocalyptic number.

18016577745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18016577745 is a deficient number, since it is larger than the sum of its proper divisors (10899079599).

18016577745 is a wasteful number, since it uses less digits than its factorization.

18016577745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553.

The product of its (nonzero) digits is 1646400, while the sum is 51.

The spelling of 18016577745 in words is "eighteen billion, sixteen million, five hundred seventy-seven thousand, seven hundred forty-five".