264066646 has 8 divisors (see below), whose sum is σ = 396776520. Its totient is φ = 131807808.

The previous prime is 264066629. The next prime is 264066667. The reversal of 264066646 is 646660462.

264066646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 264066599 and 264066608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111291 + ... + 113638.

It is an arithmetic number, because the mean of its divisors is an integer number (49597065).

Almost surely, 2^264066646 is an apocalyptic number.

264066646 is a deficient number, since it is larger than the sum of its proper divisors (132709874).

264066646 is a wasteful number, since it uses less digits than its factorization.

264066646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225518.

The product of its (nonzero) digits is 248832, while the sum is 40.

The square root of 264066646 is about 16250.1275687300. The cubic root of 264066646 is about 641.5608436120.

The spelling of 264066646 in words is "two hundred sixty-four million, sixty-six thousand, six hundred forty-six".