16327180801 has 4 divisors (see below), whose sum is σ = 16330594900. Its totient is φ = 16323766704.

The previous prime is 16327180763. The next prime is 16327180813. The reversal of 16327180801 is 10808172361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6308171776 + 10019009025 = 79424^2 + 100095^2 .

It is a cyclic number.

It is not a de Polignac number, because 16327180801 - 2⁷ = 16327180673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16327180601) 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 3 ways as a sum of consecutive naturals, for example, 1699866 + ... + 1709443.

It is an arithmetic number, because the mean of its divisors is an integer number (4082648725).

Almost surely, 2^16327180801 is an apocalyptic number.

It is an amenable number.

16327180801 is a deficient number, since it is larger than the sum of its proper divisors (3414099).

16327180801 is an equidigital number, since it uses as much as digits as its factorization.

16327180801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414098.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 16327180801 in words is "sixteen billion, three hundred twenty-seven million, one hundred eighty thousand, eight hundred one".