864266066 has 4 divisors (see below), whose sum is σ = 1296399102. Its totient is φ = 432133032.

The previous prime is 864266047. The next prime is 864266087. The reversal of 864266066 is 660662468.

864266066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 623550841 + 240715225 = 24971^2 + 15515^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216066515 + ... + 216066518.

Almost surely, 2^864266066 is an apocalyptic number.

864266066 is a deficient number, since it is larger than the sum of its proper divisors (432133036).

864266066 is a wasteful number, since it uses less digits than its factorization.

864266066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432133035.

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 864266066 is about 29398.4024395884. The cubic root of 864266066 is about 952.5383881489.

The spelling of 864266066 in words is "eight hundred sixty-four million, two hundred sixty-six thousand, sixty-six".