667040340670 has 32 divisors (see below), whose sum is σ = 1315698370560. Its totient is φ = 241472401440.

The previous prime is 667040340619. The next prime is 667040340697. The reversal of 667040340670 is 76043040766.

It is a super-2 number, since 2×667040340670² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13571890 + ... + 13620949.

It is an arithmetic number, because the mean of its divisors is an integer number (41115574080).

Almost surely, 2^667040340670 is an apocalyptic number.

667040340670 is a deficient number, since it is larger than the sum of its proper divisors (648658029890).

667040340670 is a wasteful number, since it uses less digits than its factorization.

667040340670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27193080.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 667040340670 in words is "six hundred sixty-seven billion, forty million, three hundred forty thousand, six hundred seventy".