16077989394 has 24 divisors (see below), whose sum is σ = 36884799900. Its totient is φ = 5044075008.

The previous prime is 16077989371. The next prime is 16077989429. The reversal of 16077989394 is 49398977061.

16077989394 is a `hidden beast` number, since 160 + 7 + 7 + 9 + 89 + 394 = 666.

16077989394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14074263225 + 2003726169 = 118635^2 + 44763^2 .

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 11 ways as a sum of consecutive naturals, for example, 26270919 + ... + 26271530.

Almost surely, 2^16077989394 is an apocalyptic number.

16077989394 is an abundant number, since it is smaller than the sum of its proper divisors (20806810506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16077989394 is a wasteful number, since it uses less digits than its factorization.

16077989394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52542474 (or 52542471 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 16077989394 in words is "sixteen billion, seventy-seven million, nine hundred eighty-nine thousand, three hundred ninety-four".