16640362459 has 16 divisors (see below), whose sum is σ = 19848991680. Its totient is φ = 13652720640.

The previous prime is 16640362457. The next prime is 16640362471. The reversal of 16640362459 is 95426304661.

It is a cyclic number.

It is not a de Polignac number, because 16640362459 - 2¹ = 16640362457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16640362457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531774 + ... + 562195.

It is an arithmetic number, because the mean of its divisors is an integer number (1240561980).

Almost surely, 2^16640362459 is an apocalyptic number.

16640362459 is a deficient number, since it is larger than the sum of its proper divisors (3208629221).

16640362459 is a wasteful number, since it uses less digits than its factorization.

16640362459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094070.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 16640362459 in words is "sixteen billion, six hundred forty million, three hundred sixty-two thousand, four hundred fifty-nine".