120356666601 has 4 divisors (see below), whose sum is σ = 160475555472. Its totient is φ = 80237777732.

The previous prime is 120356666557. The next prime is 120356666669. The reversal of 120356666601 is 106666653021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120356666601 - 2⁶ = 120356666537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120356666401) 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 3 ways as a sum of consecutive naturals, for example, 20059444431 + ... + 20059444436.

It is an arithmetic number, because the mean of its divisors is an integer number (40118888868).

Almost surely, 2^120356666601 is an apocalyptic number.

It is an amenable number.

120356666601 is a deficient number, since it is larger than the sum of its proper divisors (40118888871).

120356666601 is an equidigital number, since it uses as much as digits as its factorization.

120356666601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40118888870.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 120356666601 in words is "one hundred twenty billion, three hundred fifty-six million, six hundred sixty-six thousand, six hundred one".