264066004 has 6 divisors (see below), whose sum is σ = 462115514. Its totient is φ = 132033000.

The previous prime is 264065987. The next prime is 264066007. The reversal of 264066004 is 400660462.

It can be written as a sum of positive squares in only one way, i.e., 242424900 + 21641104 = 15570^2 + 4652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264066007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33008247 + ... + 33008254.

Almost surely, 2^264066004 is an apocalyptic number.

It is an amenable number.

264066004 is a deficient number, since it is larger than the sum of its proper divisors (198049510).

264066004 is a wasteful number, since it uses less digits than its factorization.

264066004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66016505 (or 66016503 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 264066004 is about 16250.1078150270. The cubic root of 264066004 is about 641.5603236898.

It can be divided in two parts, 2640 and 66004, that added together give a square (68644 = 262²).

The spelling of 264066004 in words is "two hundred sixty-four million, sixty-six thousand, four".