16344681602 has 6 divisors (see below), whose sum is σ = 24517293609. Its totient is φ = 8172250400.

The previous prime is 16344681589. The next prime is 16344681623. The reversal of 16344681602 is 20618644361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15207575761 + 1137105841 = 123319^2 + 33721^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=90401.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16344681602.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 135602 + ... + 226002.

Almost surely, 2^16344681602 is an apocalyptic number.

16344681602 is a deficient number, since it is larger than the sum of its proper divisors (8172612007).

16344681602 is an frugal number, since it uses more digits than its factorization.

16344681602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180804 (or 90403 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 16344681602 in words is "sixteen billion, three hundred forty-four million, six hundred eighty-one thousand, six hundred two".