16831885145 has 8 divisors (see below), whose sum is σ = 20425209480. Its totient is φ = 13314209920.

The previous prime is 16831885117. The next prime is 16831885153. The reversal of 16831885145 is 54158813861.

It can be written as a sum of positive squares in 4 ways, for example, as 9535744 + 16822349401 = 3088^2 + 129701^2 .

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

It is not a de Polignac number, because 16831885145 - 2⁸ = 16831884889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16831885093 and 16831885102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18911786 + ... + 18912675.

It is an arithmetic number, because the mean of its divisors is an integer number (2553151185).

Almost surely, 2^16831885145 is an apocalyptic number.

It is an amenable number.

16831885145 is a deficient number, since it is larger than the sum of its proper divisors (3593324335).

16831885145 is an equidigital number, since it uses as much as digits as its factorization.

16831885145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37824555.

The product of its digits is 921600, while the sum is 50.

The spelling of 16831885145 in words is "sixteen billion, eight hundred thirty-one million, eight hundred eighty-five thousand, one hundred forty-five".