16640059 has 8 divisors (see below), whose sum is σ = 17802288. Its totient is φ = 15498240.

The previous prime is 16640051. The next prime is 16640069. The reversal of 16640059 is 95004661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16640059 - 2³ = 16640051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16640059.

It is not an unprimeable number, because it can be changed into a prime (16640051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3397 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (2225286).

Almost surely, 2^16640059 is an apocalyptic number.

16640059 is a deficient number, since it is larger than the sum of its proper divisors (1162229).

16640059 is a wasteful number, since it uses less digits than its factorization.

16640059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10205.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 16640059 is about 4079.2228426503. Note that the first 3 decimals coincide. The cubic root of 16640059 is about 255.3004736910.

The spelling of 16640059 in words is "sixteen million, six hundred forty thousand, fifty-nine".