65571051662268 has 12 divisors (see below), whose sum is σ = 152999120545320. Its totient is φ = 21857017220752.

The previous prime is 65571051662243. The next prime is 65571051662309. The reversal of 65571051662268 is 86226615017556.

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, 2732127152583 + ... + 2732127152606.

It is an arithmetic number, because the mean of its divisors is an integer number (12749926712110).

Almost surely, 2^{65571051662268} is an apocalyptic number.

It is an amenable number.

65571051662268 is an abundant number, since it is smaller than the sum of its proper divisors (87428068883052).

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

65571051662268 is a wasteful number, since it uses less digits than its factorization.

65571051662268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464254305196 (or 5464254305194 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 60.

The spelling of 65571051662268 in words is "sixty-five trillion, five hundred seventy-one billion, fifty-one million, six hundred sixty-two thousand, two hundred sixty-eight".