667370632774366 has 4 divisors (see below), whose sum is σ = 1001055949161552. Its totient is φ = 333685316387182.

The previous prime is 667370632774309. The next prime is 667370632774423. The reversal of 667370632774366 is 663477236073766.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (667370632774309) and next prime (667370632774423).

It is a super-2 number, since 2×667370632774366² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166842658193590 + ... + 166842658193593.

It is an arithmetic number, because the mean of its divisors is an integer number (250263987290388).

Almost surely, 2^{667370632774366} is an apocalyptic number.

667370632774366 is a deficient number, since it is larger than the sum of its proper divisors (333685316387186).

667370632774366 is a wasteful number, since it uses less digits than its factorization.

667370632774366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333685316387185.

The product of its (nonzero) digits is 4032758016, while the sum is 73.

The spelling of 667370632774366 in words is "six hundred sixty-seven trillion, three hundred seventy billion, six hundred thirty-two million, seven hundred seventy-four thousand, three hundred sixty-six".