16040166545089 has 4 divisors (see below), whose sum is σ = 16128786249940. Its totient is φ = 15951546840240.

The previous prime is 16040166545083. The next prime is 16040166545107. The reversal of 16040166545089 is 98054566104061.

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 2457197327025 + 13582969218064 = 1567545^2 + 3685508^2 .

It is not a de Polignac number, because 16040166545089 - 2⁵ = 16040166545057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16040166545083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44309852154 + ... + 44309852515.

It is an arithmetic number, because the mean of its divisors is an integer number (4032196562485).

Almost surely, 2^{16040166545089} is an apocalyptic number.

It is an amenable number.

16040166545089 is a deficient number, since it is larger than the sum of its proper divisors (88619704851).

16040166545089 is an equidigital number, since it uses as much as digits as its factorization.

16040166545089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88619704850.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 16040166545089 in words is "sixteen trillion, forty billion, one hundred sixty-six million, five hundred forty-five thousand, eighty-nine".