667400667334 has 16 divisors (see below), whose sum is σ = 1002651670080. Its totient is φ = 333183592000.

The previous prime is 667400667331. The next prime is 667400667341. The reversal of 667400667334 is 433766004766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667400667331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10034292 + ... + 10100584.

It is an arithmetic number, because the mean of its divisors is an integer number (62665729380).

Almost surely, 2^667400667334 is an apocalyptic number.

667400667334 is a deficient number, since it is larger than the sum of its proper divisors (335251002746).

667400667334 is a wasteful number, since it uses less digits than its factorization.

667400667334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74015.

The product of its (nonzero) digits is 9144576, while the sum is 52.

The spelling of 667400667334 in words is "six hundred sixty-seven billion, four hundred million, six hundred sixty-seven thousand, three hundred thirty-four".