667272216 has 32 divisors (see below), whose sum is σ = 1796502960. Its totient is φ = 205314432.

The previous prime is 667272209. The next prime is 667272233. The reversal of 667272216 is 612272766.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1069035 + ... + 1069658.

Almost surely, 2^667272216 is an apocalyptic number.

It is an amenable number.

667272216 is an abundant number, since it is smaller than the sum of its proper divisors (1129230744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667272216 is a wasteful number, since it uses less digits than its factorization.

667272216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138715 (or 2138711 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 667272216 is about 25831.6127254959. The cubic root of 667272216 is about 873.8448827274.

The spelling of 667272216 in words is "six hundred sixty-seven million, two hundred seventy-two thousand, two hundred sixteen".