16328691963 has 16 divisors (see below), whose sum is σ = 24844457760. Its totient is φ = 10591583328.

The previous prime is 16328691949. The next prime is 16328691971. The reversal of 16328691963 is 36919682361.

16328691963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16328691963 - 2¹⁶ = 16328626427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16328691763) 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, 8171520 + ... + 8173517.

It is an arithmetic number, because the mean of its divisors is an integer number (1552778610).

Almost surely, 2^16328691963 is an apocalyptic number.

16328691963 is a deficient number, since it is larger than the sum of its proper divisors (8515765797).

16328691963 is a wasteful number, since it uses less digits than its factorization.

16328691963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16345083 (or 16345077 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The spelling of 16328691963 in words is "sixteen billion, three hundred twenty-eight million, six hundred ninety-one thousand, nine hundred sixty-three".