8161983446 has 16 divisors (see below), whose sum is σ = 12409929648. Its totient is φ = 4025683200.

The previous prime is 8161983437. The next prime is 8161983461. The reversal of 8161983446 is 6443891618.

It is a junction number, because it is equal to n+sod(n) for n = 8161983394 and 8161983403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37895 + ... + 133266.

It is an arithmetic number, because the mean of its divisors is an integer number (775620603).

Almost surely, 2^8161983446 is an apocalyptic number.

8161983446 is a deficient number, since it is larger than the sum of its proper divisors (4247946202).

8161983446 is a wasteful number, since it uses less digits than its factorization.

8161983446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171487.

The product of its digits is 995328, while the sum is 50.

The square root of 8161983446 is about 90343.6962161722. The cubic root of 8161983446 is about 2013.4085253326.

The spelling of 8161983446 in words is "eight billion, one hundred sixty-one million, nine hundred eighty-three thousand, four hundred forty-six".