203790066 has 16 divisors (see below), whose sum is σ = 412491744. Its totient is φ = 67111424.

The previous prime is 203790061. The next prime is 203790079. The reversal of 203790066 is 660097302.

203790066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (203790061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204111 + ... + 205106.

It is an arithmetic number, because the mean of its divisors is an integer number (25780734).

Almost surely, 2^203790066 is an apocalyptic number.

203790066 is an abundant number, since it is smaller than the sum of its proper divisors (208701678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203790066 is a wasteful number, since it uses less digits than its factorization.

203790066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409305.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 203790066 is about 14275.5058053997. The cubic root of 203790066 is about 588.4745290152.

The spelling of 203790066 in words is "two hundred three million, seven hundred ninety thousand, sixty-six".