16018323530 has 16 divisors (see below), whose sum is σ = 31454162784. Its totient is φ = 5824844880.

The previous prime is 16018323509. The next prime is 16018323533. The reversal of 16018323530 is 3532381061.

It is not an unprimeable number, because it can be changed into a prime (16018323533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72810452 + ... + 72810671.

It is an arithmetic number, because the mean of its divisors is an integer number (1965885174).

Almost surely, 2^16018323530 is an apocalyptic number.

16018323530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16018323530 is a deficient number, since it is larger than the sum of its proper divisors (15435839254).

16018323530 is a wasteful number, since it uses less digits than its factorization.

16018323530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145621141.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 16018323530 in words is "sixteen billion, eighteen million, three hundred twenty-three thousand, five hundred thirty".