16580890257 has 16 divisors (see below), whose sum is σ = 22800138240. Its totient is φ = 10711833552.

The previous prime is 16580890243. The next prime is 16580890267. The reversal of 16580890257 is 75209808561.

16580890257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-16580890257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16580890267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489657 + ... + 522422.

It is an arithmetic number, because the mean of its divisors is an integer number (1425008640).

Almost surely, 2^16580890257 is an apocalyptic number.

It is an amenable number.

16580890257 is a deficient number, since it is larger than the sum of its proper divisors (6219247983).

16580890257 is a wasteful number, since it uses less digits than its factorization.

16580890257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012252.

The product of its (nonzero) digits is 1209600, while the sum is 51.

The spelling of 16580890257 in words is "sixteen billion, five hundred eighty million, eight hundred ninety thousand, two hundred fifty-seven".