667016352 has 72 divisors (see below), whose sum is σ = 2008420596. Its totient is φ = 209258496.

The previous prime is 667016347. The next prime is 667016411. The reversal of 667016352 is 253610766.

It can be written as a sum of positive squares in 2 ways, for example, as 655155216 + 11861136 = 25596^2 + 3444^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63223 + ... + 73014.

Almost surely, 2^667016352 is an apocalyptic number.

It is an amenable number.

667016352 is an abundant number, since it is smaller than the sum of its proper divisors (1341404244).

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

667016352 is a wasteful number, since it uses less digits than its factorization.

667016352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136270 (or 136259 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 667016352 is about 25826.6597143339. The cubic root of 667016352 is about 873.7331771768.

The spelling of 667016352 in words is "six hundred sixty-seven million, sixteen thousand, three hundred fifty-two".