16349890888 has 8 divisors (see below), whose sum is σ = 30656045430. Its totient is φ = 8174945440.

The previous prime is 16349890867. The next prime is 16349890897. The reversal of 16349890888 is 88809894361.

It can be written as a sum of positive squares in only one way, i.e., 12660300324 + 3689590564 = 112518^2 + 60742^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021868173 + ... + 1021868188.

Almost surely, 2^16349890888 is an apocalyptic number.

It is an amenable number.

16349890888 is a deficient number, since it is larger than the sum of its proper divisors (14306154542).

16349890888 is a wasteful number, since it uses less digits than its factorization.

16349890888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043736367 (or 2043736363 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 64.

The spelling of 16349890888 in words is "sixteen billion, three hundred forty-nine million, eight hundred ninety thousand, eight hundred eighty-eight".