33057057856 has 21 divisors (see below), whose sum is σ = 65600485639. Its totient is φ = 16527801664.

The previous prime is 33057057853. The next prime is 33057057871. The reversal of 33057057856 is 65875075033.

It is a happy number.

The square root of 33057057856 is 181816.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33057057851) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1443165 + ... + 1465891.

Almost surely, 2^33057057856 is an apocalyptic number.

33057057856 is the 181816-th square number.

It is an amenable number.

33057057856 is a deficient number, since it is larger than the sum of its proper divisors (32543427783).

33057057856 is an frugal number, since it uses more digits than its factorization.

33057057856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45466 (or 22729 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 49.

Multiplying 33057057856 by its sum of digits (49), we get a square (1619795834944 = 1272712²).

The spelling of 33057057856 in words is "thirty-three billion, fifty-seven million, fifty-seven thousand, eight hundred fifty-six".