16379871571 has 16 divisors (see below), whose sum is σ = 18806860800. Its totient is φ = 13974788448.

The previous prime is 16379871533. The next prime is 16379871577. The reversal of 16379871571 is 17517897361.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16379871571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16379871577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1363690 + ... + 1375648.

It is an arithmetic number, because the mean of its divisors is an integer number (1175428800).

Almost surely, 2^16379871571 is an apocalyptic number.

16379871571 is a deficient number, since it is larger than the sum of its proper divisors (2426989229).

16379871571 is a wasteful number, since it uses less digits than its factorization.

16379871571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12858.

The product of its digits is 2222640, while the sum is 55.

The spelling of 16379871571 in words is "sixteen billion, three hundred seventy-nine million, eight hundred seventy-one thousand, five hundred seventy-one".