2016785564 has 12 divisors (see below), whose sum is σ = 3530620800. Its totient is φ = 1008036768.

The previous prime is 2016785509. The next prime is 2016785579. The reversal of 2016785564 is 4655876102.

It is a super-2 number, since 2×2016785564² = 8134848022317596192, which contains 22 as substring.

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, 76049 + ... + 99080.

It is an arithmetic number, because the mean of its divisors is an integer number (294218400).

Almost surely, 2^2016785564 is an apocalyptic number.

It is an amenable number.

2016785564 is a deficient number, since it is larger than the sum of its proper divisors (1513835236).

2016785564 is a wasteful number, since it uses less digits than its factorization.

2016785564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178012 (or 178010 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 2016785564 is about 44908.6357396882. The cubic root of 2016785564 is about 1263.4359823738.

The spelling of 2016785564 in words is "two billion, sixteen million, seven hundred eighty-five thousand, five hundred sixty-four".