8100058666661 has 16 divisors (see below), whose sum is σ = 8727297406464. Its totient is φ = 7473414763584.

The previous prime is 8100058666657. The next prime is 8100058666663. The reversal of 8100058666661 is 1666668500018.

It is a cyclic number.

It is not a de Polignac number, because 8100058666661 - 2² = 8100058666657 is a prime.

It is a super-2 number, since 2×8100058666661² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8100058666663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272503346 + ... + 272533068.

It is an arithmetic number, because the mean of its divisors is an integer number (545456087904).

Almost surely, 2^{8100058666661} is an apocalyptic number.

It is an amenable number.

8100058666661 is a deficient number, since it is larger than the sum of its proper divisors (627238739803).

8100058666661 is a wasteful number, since it uses less digits than its factorization.

8100058666661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39020.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 8100058666661 in words is "eight trillion, one hundred billion, fifty-eight million, six hundred sixty-six thousand, six hundred sixty-one".