120665134641 has 8 divisors (see below), whose sum is σ = 160890213600. Its totient is φ = 80441739392.

The previous prime is 120665134637. The next prime is 120665134651. The reversal of 120665134641 is 146431566021.

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 120665134641 - 2² = 120665134637 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120665134641.

It is not an unprimeable number, because it can be changed into a prime (120665134651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242955 + ... + 548048.

It is an arithmetic number, because the mean of its divisors is an integer number (20111276700).

Almost surely, 2^120665134641 is an apocalyptic number.

It is an amenable number.

120665134641 is a deficient number, since it is larger than the sum of its proper divisors (40225078959).

120665134641 is an equidigital number, since it uses as much as digits as its factorization.

120665134641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841855.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 120665134641 in words is "one hundred twenty billion, six hundred sixty-five million, one hundred thirty-four thousand, six hundred forty-one".