18344066530 has 16 divisors (see below), whose sum is σ = 34454942784. Its totient is φ = 7018599280.

The previous prime is 18344066527. The next prime is 18344066567. The reversal of 18344066530 is 3566044381.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39878176 + ... + 39878635.

It is an arithmetic number, because the mean of its divisors is an integer number (2153433924).

Almost surely, 2^18344066530 is an apocalyptic number.

18344066530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18344066530 is a deficient number, since it is larger than the sum of its proper divisors (16110876254).

18344066530 is a wasteful number, since it uses less digits than its factorization.

18344066530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79756841.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 18344066530 in words is "eighteen billion, three hundred forty-four million, sixty-six thousand, five hundred thirty".