67071257112 has 64 divisors (see below), whose sum is σ = 172856304000. Its totient is φ = 21677048064.

The previous prime is 67071257093. The next prime is 67071257119. The reversal of 67071257112 is 21175217076.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67071257119) 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 15 ways as a sum of consecutive naturals, for example, 221062 + ... + 427797.

It is an arithmetic number, because the mean of its divisors is an integer number (2700879750).

Almost surely, 2^67071257112 is an apocalyptic number.

It is an amenable number.

67071257112 is an abundant number, since it is smaller than the sum of its proper divisors (105785046888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67071257112 is a wasteful number, since it uses less digits than its factorization.

67071257112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649000 (or 648996 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 39.

The spelling of 67071257112 in words is "sixty-seven billion, seventy-one million, two hundred fifty-seven thousand, one hundred twelve".