16693910901 has 12 divisors (see below), whose sum is σ = 24221561728. Its totient is φ = 11079365544.

The previous prime is 16693910881. The next prime is 16693910917. The reversal of 16693910901 is 10901939661.

It is not a de Polignac number, because 16693910901 - 2¹⁸ = 16693648757 is a prime.

It is a super-2 number, since 2×16693910901² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16693911901) by changing a digit.

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, 4156915 + ... + 4160928.

Almost surely, 2^16693910901 is an apocalyptic number.

It is an amenable number.

16693910901 is a deficient number, since it is larger than the sum of its proper divisors (7527650827).

16693910901 is a wasteful number, since it uses less digits than its factorization.

16693910901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8318072 (or 8318069 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The spelling of 16693910901 in words is "sixteen billion, six hundred ninety-three million, nine hundred ten thousand, nine hundred one".