16056086409 has 30 divisors (see below), whose sum is σ = 26363713530. Its totient is φ = 9730955520.

The previous prime is 16056086393. The next prime is 16056086411. The reversal of 16056086409 is 90468065061.

16056086409 is a `hidden beast` number, since 1 + 6 + 0 + 560 + 86 + 4 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12849356025 + 3206730384 = 113355^2 + 56628^2 .

It is not a de Polignac number, because 16056086409 - 2⁴ = 16056086393 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16056086429) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 809304 + ... + 828905.

It is an arithmetic number, because the mean of its divisors is an integer number (878790451).

Almost surely, 2^16056086409 is an apocalyptic number.

It is an amenable number.

16056086409 is a deficient number, since it is larger than the sum of its proper divisors (10307627121).

16056086409 is a wasteful number, since it uses less digits than its factorization.

16056086409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638243 (or 1638223 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 16056086409 in words is "sixteen billion, fifty-six million, eighty-six thousand, four hundred nine".