67442012416 has 27 divisors (see below), whose sum is σ = 134628874023. Its totient is φ = 33718928640.

The previous prime is 67442012377. The next prime is 67442012423. The reversal of 67442012416 is 61421024476.

The square root of 67442012416 is 259696.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 4147021 + ... + 4163251.

Almost surely, 2^67442012416 is an apocalyptic number.

67442012416 is the 259696-th square number.

It is an amenable number.

67442012416 is a deficient number, since it is larger than the sum of its proper divisors (67186861607).

67442012416 is an frugal number, since it uses more digits than its factorization.

67442012416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32478 (or 16233 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 67442012416 in words is "sixty-seven billion, four hundred forty-two million, twelve thousand, four hundred sixteen".