16857115388 has 6 divisors (see below), whose sum is σ = 29499951936. Its totient is φ = 8428557692.

The previous prime is 16857115367. The next prime is 16857115411. The reversal of 16857115388 is 88351175861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2107139420 + ... + 2107139427.

It is an arithmetic number, because the mean of its divisors is an integer number (4916658656).

Almost surely, 2^16857115388 is an apocalyptic number.

It is an amenable number.

16857115388 is a deficient number, since it is larger than the sum of its proper divisors (12642836548).

16857115388 is a wasteful number, since it uses less digits than its factorization.

16857115388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214278851 (or 4214278849 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 53.

The spelling of 16857115388 in words is "sixteen billion, eight hundred fifty-seven million, one hundred fifteen thousand, three hundred eighty-eight".