2566432066 has 16 divisors (see below), whose sum is σ = 4225386528. Its totient is φ = 1159401600.

The previous prime is 2566432051. The next prime is 2566432067. The reversal of 2566432066 is 6602346652.

It is not an unprimeable number, because it can be changed into a prime (2566432067) 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, 354255 + ... + 361426.

It is an arithmetic number, because the mean of its divisors is an integer number (264086658).

Almost surely, 2^2566432066 is an apocalyptic number.

2566432066 is a deficient number, since it is larger than the sum of its proper divisors (1658954462).

2566432066 is a wasteful number, since it uses less digits than its factorization.

2566432066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715857.

The product of its (nonzero) digits is 311040, while the sum is 40.

The square root of 2566432066 is about 50659.9651203986. The cubic root of 2566432066 is about 1369.1254947889.

The spelling of 2566432066 in words is "two billion, five hundred sixty-six million, four hundred thirty-two thousand, sixty-six".