667214321434 has 16 divisors (see below), whose sum is σ = 1009062966600. Its totient is φ = 330866775360.

The previous prime is 667214321401. The next prime is 667214321489. The reversal of 667214321434 is 434123412766.

It can be written as a sum of positive squares in 4 ways, for example, as 617643525409 + 49570796025 = 785903^2 + 222645^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1496649 + ... + 1890604.

Almost surely, 2^667214321434 is an apocalyptic number.

667214321434 is a deficient number, since it is larger than the sum of its proper divisors (341848645166).

667214321434 is a wasteful number, since it uses less digits than its factorization.

667214321434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3388065.

The product of its digits is 580608, while the sum is 43.

The spelling of 667214321434 in words is "six hundred sixty-seven billion, two hundred fourteen million, three hundred twenty-one thousand, four hundred thirty-four".