18098911536 has 160 divisors (see below), whose sum is σ = 49215897600. Its totient is φ = 5724069120.

The previous prime is 18098911511. The next prime is 18098911543. The reversal of 18098911536 is 63511989081.

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, 37784545 + ... + 37785023.

It is an arithmetic number, because the mean of its divisors is an integer number (307599360).

Almost surely, 2^18098911536 is an apocalyptic number.

18098911536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18098911536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24607948800).

18098911536 is an abundant number, since it is smaller than the sum of its proper divisors (31116986064).

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

18098911536 is a wasteful number, since it uses less digits than its factorization.

18098911536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 51.

The spelling of 18098911536 in words is "eighteen billion, ninety-eight million, nine hundred eleven thousand, five hundred thirty-six".