82668057607261 has 8 divisors (see below), whose sum is σ = 94641519780800. Its totient is φ = 70735530348288.

The previous prime is 82668057607237. The next prime is 82668057607297. The reversal of 82668057607261 is 16270675086628.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82668057607261 - 2⁷ = 82668057607133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82668057607193 and 82668057607202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82668057617261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10233724311 + ... + 10233732388.

It is an arithmetic number, because the mean of its divisors is an integer number (11830189972600).

Almost surely, 2^{82668057607261} is an apocalyptic number.

It is an amenable number.

82668057607261 is a deficient number, since it is larger than the sum of its proper divisors (11973462173539).

82668057607261 is a wasteful number, since it uses less digits than its factorization.

82668057607261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20467457283.

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 82668057607261 in words is "eighty-two trillion, six hundred sixty-eight billion, fifty-seven million, six hundred seven thousand, two hundred sixty-one".