16645346330 has 32 divisors (see below), whose sum is σ = 31776859008. Its totient is φ = 6264244800.

The previous prime is 16645346329. The next prime is 16645346351. The reversal of 16645346330 is 3364354661.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 579176 + ... + 607235.

It is an arithmetic number, because the mean of its divisors is an integer number (993026844).

Almost surely, 2^16645346330 is an apocalyptic number.

16645346330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16645346330 is a deficient number, since it is larger than the sum of its proper divisors (15131512678).

16645346330 is a wasteful number, since it uses less digits than its factorization.

16645346330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186502.

The product of its (nonzero) digits is 466560, while the sum is 41.

The spelling of 16645346330 in words is "sixteen billion, six hundred forty-five million, three hundred forty-six thousand, three hundred thirty".