16231780203 has 8 divisors (see below), whose sum is σ = 22340514816. Its totient is φ = 10472116200.

The previous prime is 16231780163. The next prime is 16231780207. The reversal of 16231780203 is 30208713261.

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

It is not a de Polignac number, because 16231780203 - 2⁹ = 16231779691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16231780207) 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 7 ways as a sum of consecutive naturals, for example, 87267543 + ... + 87267728.

It is an arithmetic number, because the mean of its divisors is an integer number (2792564352).

Almost surely, 2^16231780203 is an apocalyptic number.

16231780203 is a deficient number, since it is larger than the sum of its proper divisors (6108734613).

16231780203 is a wasteful number, since it uses less digits than its factorization.

16231780203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174535305.

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 16231780203 in words is "sixteen billion, two hundred thirty-one million, seven hundred eighty thousand, two hundred three".