16393532871 has 16 divisors (see below), whose sum is σ = 23890387968. Its totient is φ = 9954326400.

The previous prime is 16393532797. The next prime is 16393532879. The reversal of 16393532871 is 17823539361.

It is not a de Polignac number, because 16393532871 - 2⁹ = 16393532359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16393532871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16393532879) 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, 5182965 + ... + 5186126.

It is an arithmetic number, because the mean of its divisors is an integer number (1493149248).

Almost surely, 2^16393532871 is an apocalyptic number.

16393532871 is a deficient number, since it is larger than the sum of its proper divisors (7496855097).

16393532871 is a wasteful number, since it uses less digits than its factorization.

16393532871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10369142.

The product of its digits is 816480, while the sum is 48.

The spelling of 16393532871 in words is "sixteen billion, three hundred ninety-three million, five hundred thirty-two thousand, eight hundred seventy-one".