67271706651612 has 12 divisors (see below), whose sum is σ = 156967315520456. Its totient is φ = 22423902217200.

The previous prime is 67271706651581. The next prime is 67271706651631. The reversal of 67271706651612 is 21615660717276.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2802987777139 + ... + 2802987777162.

Almost surely, 2^{67271706651612} is an apocalyptic number.

It is an amenable number.

67271706651612 is an abundant number, since it is smaller than the sum of its proper divisors (89695608868844).

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

67271706651612 is a wasteful number, since it uses less digits than its factorization.

67271706651612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605975554308 (or 5605975554306 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 57.

The spelling of 67271706651612 in words is "sixty-seven trillion, two hundred seventy-one billion, seven hundred six million, six hundred fifty-one thousand, six hundred twelve".