16265887828 has 12 divisors (see below), whose sum is σ = 28508899860. Its totient is φ = 8120487872.

The previous prime is 16265887789. The next prime is 16265887837. The reversal of 16265887828 is 82878856261.

It can be written as a sum of positive squares in 2 ways, for example, as 1884601744 + 14381286084 = 43412^2 + 119922^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3111073 + ... + 3116296.

It is an arithmetic number, because the mean of its divisors is an integer number (2375741655).

Almost surely, 2^16265887828 is an apocalyptic number.

It is an amenable number.

16265887828 is a deficient number, since it is larger than the sum of its proper divisors (12243012032).

16265887828 is a wasteful number, since it uses less digits than its factorization.

16265887828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6228026 (or 6228024 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 61.

The spelling of 16265887828 in words is "sixteen billion, two hundred sixty-five million, eight hundred eighty-seven thousand, eight hundred twenty-eight".