243613066 has 16 divisors (see below), whose sum is σ = 378309888. Its totient is φ = 117532800.

The previous prime is 243613057. The next prime is 243613067. The reversal of 243613066 is 660316342.

243613066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (243613067) 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, 16321 + ... + 27451.

It is an arithmetic number, because the mean of its divisors is an integer number (23644368).

Almost surely, 2^243613066 is an apocalyptic number.

243613066 is a deficient number, since it is larger than the sum of its proper divisors (134696822).

243613066 is a wasteful number, since it uses less digits than its factorization.

243613066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11517.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 243613066 is about 15608.1089821926. The cubic root of 243613066 is about 624.5494916656.

The spelling of 243613066 in words is "two hundred forty-three million, six hundred thirteen thousand, sixty-six".