16576856946 has 24 divisors (see below), whose sum is σ = 38679333420. Its totient is φ = 5100571296.

The previous prime is 16576856941. The next prime is 16576856971. The reversal of 16576856946 is 64965867561.

16576856946 is a `hidden beast` number, since 1 + 6 + 5 + 7 + 68 + 569 + 4 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16536674025 + 40182921 = 128595^2 + 6339^2 .

It is not an unprimeable number, because it can be changed into a prime (16576856941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35420401 + ... + 35420868.

Almost surely, 2^16576856946 is an apocalyptic number.

16576856946 is an abundant number, since it is smaller than the sum of its proper divisors (22102476474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16576856946 is a wasteful number, since it uses less digits than its factorization.

16576856946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70841290 (or 70841287 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The spelling of 16576856946 in words is "sixteen billion, five hundred seventy-six million, eight hundred fifty-six thousand, nine hundred forty-six".