16689390201 has 16 divisors (see below), whose sum is σ = 26972752320. Its totient is φ = 10114781760.

The previous prime is 16689390169. The next prime is 16689390269. The reversal of 16689390201 is 10209398661.

It is a happy number.

16689390201 is a `hidden beast` number, since 166 + 89 + 390 + 20 + 1 = 666.

It is not a de Polignac number, because 16689390201 - 2⁵ = 16689390169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16689390281) 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 15 ways as a sum of consecutive naturals, for example, 28096320 + ... + 28096913.

It is an arithmetic number, because the mean of its divisors is an integer number (1685797020).

Almost surely, 2^16689390201 is an apocalyptic number.

16689390201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16689390201 is a deficient number, since it is larger than the sum of its proper divisors (10283362119).

16689390201 is a wasteful number, since it uses less digits than its factorization.

16689390201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56193253 (or 56193247 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 16689390201 in words is "sixteen billion, six hundred eighty-nine million, three hundred ninety thousand, two hundred one".