16500070231 has 16 divisors (see below), whose sum is σ = 17990431200. Its totient is φ = 15073285248.

The previous prime is 16500070201. The next prime is 16500070243. The reversal of 16500070231 is 13207000561.

It is a cyclic number.

It is not a de Polignac number, because 16500070231 - 2¹¹ = 16500068183 is a prime.

It is a super-2 number, since 2×16500070231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16500070196 and 16500070205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16500070201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420361 + ... + 457933.

It is an arithmetic number, because the mean of its divisors is an integer number (1124401950).

Almost surely, 2^16500070231 is an apocalyptic number.

16500070231 is a deficient number, since it is larger than the sum of its proper divisors (1490360969).

16500070231 is a wasteful number, since it uses less digits than its factorization.

16500070231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38418.

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 16500070231 its reverse (13207000561), we get a palindrome (29707070792).

The spelling of 16500070231 in words is "sixteen billion, five hundred million, seventy thousand, two hundred thirty-one".