16694443610 has 24 divisors (see below), whose sum is σ = 32539350780. Its totient is φ = 6164101632.

The previous prime is 16694443573. The next prime is 16694443669. The reversal of 16694443610 is 1634449661.

It can be written as a sum of positive squares in 6 ways, for example, as 6485564089 + 10208879521 = 80533^2 + 101039^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4937495 + ... + 4940874.

Almost surely, 2^16694443610 is an apocalyptic number.

16694443610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16694443610 is a deficient number, since it is larger than the sum of its proper divisors (15844907170).

16694443610 is a wasteful number, since it uses less digits than its factorization.

16694443610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878402 (or 9878389 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 16694443610 in words is "sixteen billion, six hundred ninety-four million, four hundred forty-three thousand, six hundred ten".