667333403401 has 24 divisors (see below), whose sum is σ = 804328021440. Its totient is φ = 551399940000.

The previous prime is 667333403351. The next prime is 667333403467. The reversal of 667333403401 is 104304333766.

It is a happy number.

It is not a de Polignac number, because 667333403401 - 2⁹ = 667333402889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667333403501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 524526 + ... + 1268776.

It is an arithmetic number, because the mean of its divisors is an integer number (33513667560).

Almost surely, 2^667333403401 is an apocalyptic number.

It is an amenable number.

667333403401 is a deficient number, since it is larger than the sum of its proper divisors (136994618039).

667333403401 is a wasteful number, since it uses less digits than its factorization.

667333403401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744925 (or 744918 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 40.

The spelling of 667333403401 in words is "six hundred sixty-seven billion, three hundred thirty-three million, four hundred three thousand, four hundred one".