667220264 has 16 divisors (see below), whose sum is σ = 1316882400. Its totient is φ = 316051632.

The previous prime is 667220263. The next prime is 667220269. The reversal of 667220264 is 462022766.

667220264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (667220261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2194652 + ... + 2194955.

It is an arithmetic number, because the mean of its divisors is an integer number (82305150).

Almost surely, 2^667220264 is an apocalyptic number.

It is an amenable number.

667220264 is a deficient number, since it is larger than the sum of its proper divisors (649662136).

667220264 is a wasteful number, since it uses less digits than its factorization.

667220264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389632 (or 4389628 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 667220264 is about 25830.6071163649. The cubic root of 667220264 is about 873.8222037435.

The spelling of 667220264 in words is "six hundred sixty-seven million, two hundred twenty thousand, two hundred sixty-four".