16971820323 has 8 divisors (see below), whose sum is σ = 22633905936. Its totient is φ = 11312140800.

The previous prime is 16971820291. The next prime is 16971820403. The reversal of 16971820323 is 32302817961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16971820323 - 2⁵ = 16971820291 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16971821323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584998 + ... + 613323.

It is an arithmetic number, because the mean of its divisors is an integer number (2829238242).

Almost surely, 2^16971820323 is an apocalyptic number.

16971820323 is a deficient number, since it is larger than the sum of its proper divisors (5662085613).

16971820323 is a wasteful number, since it uses less digits than its factorization.

16971820323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203045.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 16971820323 in words is "sixteen billion, nine hundred seventy-one million, eight hundred twenty thousand, three hundred twenty-three".