120454666809 has 16 divisors (see below), whose sum is σ = 163313160384. Its totient is φ = 78950836800.

The previous prime is 120454666799. The next prime is 120454666831. The reversal of 120454666809 is 908666454021.

It is not a de Polignac number, because 120454666809 - 2⁵ = 120454666777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120454666879) 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 15 ways as a sum of consecutive naturals, for example, 258262 + ... + 554624.

It is an arithmetic number, because the mean of its divisors is an integer number (10207072524).

Almost surely, 2^120454666809 is an apocalyptic number.

It is an amenable number.

120454666809 is a deficient number, since it is larger than the sum of its proper divisors (42858493575).

120454666809 is a wasteful number, since it uses less digits than its factorization.

120454666809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298648.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 120454666809 in words is "one hundred twenty billion, four hundred fifty-four million, six hundred sixty-six thousand, eight hundred nine".