16367108738 has 18 divisors (see below), whose sum is σ = 24976572777. Its totient is φ = 8043969960.

The previous prime is 16367108707. The next prime is 16367108741. The reversal of 16367108738 is 83780176361.

It can be written as a sum of positive squares in 2 ways, for example, as 11086615849 + 5280492889 = 105293^2 + 72667^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=90463.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11035745 + ... + 11037227.

Almost surely, 2^16367108738 is an apocalyptic number.

16367108738 is a deficient number, since it is larger than the sum of its proper divisors (8609464039).

16367108738 is an frugal number, since it uses more digits than its factorization.

16367108738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090 (or 1546 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

Multiplying 16367108738 by its sum of digits (50), we get a square (818355436900 = 904630²).

The spelling of 16367108738 in words is "sixteen billion, three hundred sixty-seven million, one hundred eight thousand, seven hundred thirty-eight".