112665647255721 has 8 divisors (see below), whose sum is σ = 171680986294464. Its totient is φ = 64380369860400.

The previous prime is 112665647255701. The next prime is 112665647255767. The reversal of 112665647255721 is 127552746566211.

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

It is not a de Polignac number, because 112665647255721 - 2¹¹ = 112665647253673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112665647255701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2682515410830 + ... + 2682515410871.

It is an arithmetic number, because the mean of its divisors is an integer number (21460123286808).

Almost surely, 2^{112665647255721} is an apocalyptic number.

It is an amenable number.

112665647255721 is a deficient number, since it is larger than the sum of its proper divisors (59015339038743).

112665647255721 is an equidigital number, since it uses as much as digits as its factorization.

112665647255721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5365030821711.

The product of its digits is 42336000, while the sum is 60.

The spelling of 112665647255721 in words is "one hundred twelve trillion, six hundred sixty-five billion, six hundred forty-seven million, two hundred fifty-five thousand, seven hundred twenty-one".