67144401466 has 4 divisors (see below), whose sum is σ = 100716602202. Its totient is φ = 33572200732.

The previous prime is 67144401451. The next prime is 67144401529. The reversal of 67144401466 is 66410444176.

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

It can be written as a sum of positive squares in only one way, i.e., 48243926025 + 18900475441 = 219645^2 + 137479^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16786100365 + ... + 16786100368.

Almost surely, 2^67144401466 is an apocalyptic number.

67144401466 is a deficient number, since it is larger than the sum of its proper divisors (33572200736).

67144401466 is a wasteful number, since it uses less digits than its factorization.

67144401466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33572200735.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 67144401466 in words is "sixty-seven billion, one hundred forty-four million, four hundred one thousand, four hundred sixty-six".