667864150 has 12 divisors (see below), whose sum is σ = 1242227412. Its totient is φ = 267145640.

The previous prime is 667864139. The next prime is 667864157. The reversal of 667864150 is 51468766.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 667864097 and 667864106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667864157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6678592 + ... + 6678691.

It is an arithmetic number, because the mean of its divisors is an integer number (103518951).

Almost surely, 2^667864150 is an apocalyptic number.

667864150 is a deficient number, since it is larger than the sum of its proper divisors (574363262).

667864150 is a wasteful number, since it uses less digits than its factorization.

667864150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357295 (or 13357290 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 667864150 is about 25843.0677358552. The cubic root of 667864150 is about 874.1032009006.

The spelling of 667864150 in words is "six hundred sixty-seven million, eight hundred sixty-four thousand, one hundred fifty".