16367588645 has 4 divisors (see below), whose sum is σ = 19641106380. Its totient is φ = 13094070912.

The previous prime is 16367588641. The next prime is 16367588669. The reversal of 16367588645 is 54688576361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54688576361 = 19687 ⋅2777903.

It can be written as a sum of positive squares in 2 ways, for example, as 5638357921 + 10729230724 = 75089^2 + 103582^2 .

It is a cyclic number.

It is not a de Polignac number, because 16367588645 - 2² = 16367588641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16367588641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636758860 + ... + 1636758869.

It is an arithmetic number, because the mean of its divisors is an integer number (4910276595).

Almost surely, 2^16367588645 is an apocalyptic number.

It is an amenable number.

16367588645 is a deficient number, since it is larger than the sum of its proper divisors (3273517735).

16367588645 is an equidigital number, since it uses as much as digits as its factorization.

16367588645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273517734.

The product of its digits is 29030400, while the sum is 59.

The spelling of 16367588645 in words is "sixteen billion, three hundred sixty-seven million, five hundred eighty-eight thousand, six hundred forty-five".