667400067374 has 8 divisors (see below), whose sum is σ = 1001103570648. Its totient is φ = 333698877160.

The previous prime is 667400067331. The next prime is 667400067377. The reversal of 667400067374 is 473760004766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667400067377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801764 + ... + 1406280.

It is an arithmetic number, because the mean of its divisors is an integer number (125137946331).

Almost surely, 2^667400067374 is an apocalyptic number.

667400067374 is a deficient number, since it is larger than the sum of its proper divisors (333703503274).

667400067374 is a wasteful number, since it uses less digits than its factorization.

667400067374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156530.

The product of its (nonzero) digits is 3556224, while the sum is 50.

The spelling of 667400067374 in words is "six hundred sixty-seven billion, four hundred million, sixty-seven thousand, three hundred seventy-four".