71662049312688 has 80 divisors (see below), whose sum is σ = 205703533416960. Its totient is φ = 23886547274304.

The previous prime is 71662049312653. The next prime is 71662049312783. The reversal of 71662049312688 is 88621394026617.

71662049312688 is a `hidden beast` number, since 7 + 1 + 6 + 62 + 0 + 493 + 1 + 2 + 6 + 88 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10156981 + ... + 15699947.

It is an arithmetic number, because the mean of its divisors is an integer number (2571294167712).

Almost surely, 2^{71662049312688} is an apocalyptic number.

It is an amenable number.

71662049312688 is an abundant number, since it is smaller than the sum of its proper divisors (134041484104272).

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

71662049312688 is a wasteful number, since it uses less digits than its factorization.

71662049312688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572911 (or 5572899 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 71662049312688 in words is "seventy-one trillion, six hundred sixty-two billion, forty-nine million, three hundred twelve thousand, six hundred eighty-eight".