16375344465 has 24 divisors (see below), whose sum is σ = 27652114368. Its totient is φ = 8273855520.

The previous prime is 16375344457. The next prime is 16375344487. The reversal of 16375344465 is 56444357361.

16375344465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16375344465 - 2³ = 16375344457 is a prime.

It is a super-2 number, since 2×16375344465² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1506621 + ... + 1517450.

It is an arithmetic number, because the mean of its divisors is an integer number (1152171432).

Almost surely, 2^16375344465 is an apocalyptic number.

16375344465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16375344465 is a deficient number, since it is larger than the sum of its proper divisors (11276769903).

16375344465 is a wasteful number, since it uses less digits than its factorization.

16375344465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024117 (or 3024098 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 48.

The spelling of 16375344465 in words is "sixteen billion, three hundred seventy-five million, three hundred forty-four thousand, four hundred sixty-five".