16109387077 has 16 divisors (see below), whose sum is σ = 18546328192. Its totient is φ = 13706521920.

The previous prime is 16109386961. The next prime is 16109387089. The reversal of 16109387077 is 77078390161.

It is not a de Polignac number, because 16109387077 - 2²⁷ = 15975169349 is a prime.

It is a super-2 number, since 2×16109387077² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16109387077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16109337077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194502 + ... + 1207912.

It is an arithmetic number, because the mean of its divisors is an integer number (1159145512).

Almost surely, 2^16109387077 is an apocalyptic number.

It is an amenable number.

16109387077 is a deficient number, since it is larger than the sum of its proper divisors (2436941115).

16109387077 is a wasteful number, since it uses less digits than its factorization.

16109387077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14668.

The product of its (nonzero) digits is 444528, while the sum is 49.

The spelling of 16109387077 in words is "sixteen billion, one hundred nine million, three hundred eighty-seven thousand, seventy-seven".