667516245 has 32 divisors (see below), whose sum is σ = 1170063360. Its totient is φ = 322271040.

The previous prime is 667516217. The next prime is 667516249. The reversal of 667516245 is 542615766.

It is not a de Polignac number, because 667516245 - 2¹⁰ = 667515221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 667516197 and 667516206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667516249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30972 + ... + 47898.

It is an arithmetic number, because the mean of its divisors is an integer number (36564480).

Almost surely, 2^667516245 is an apocalyptic number.

It is an amenable number.

667516245 is a deficient number, since it is larger than the sum of its proper divisors (502547115).

667516245 is a wasteful number, since it uses less digits than its factorization.

667516245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17185.

The product of its digits is 302400, while the sum is 42.

The square root of 667516245 is about 25836.3357502568. The cubic root of 667516245 is about 873.9513947315.

The spelling of 667516245 in words is "six hundred sixty-seven million, five hundred sixteen thousand, two hundred forty-five".