120406166243 has 48 divisors (see below), whose sum is σ = 141399535200. Its totient is φ = 102266841600.

The previous prime is 120406166227. The next prime is 120406166263. The reversal of 120406166243 is 342661604021.

It is not a de Polignac number, because 120406166243 - 2⁴ = 120406166227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120406166263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16443023 + ... + 16450343.

It is an arithmetic number, because the mean of its divisors is an integer number (2945823650).

Almost surely, 2^120406166243 is an apocalyptic number.

120406166243 is a deficient number, since it is larger than the sum of its proper divisors (20993368957).

120406166243 is a wasteful number, since it uses less digits than its factorization.

120406166243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524 (or 7513 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 120406166243 in words is "one hundred twenty billion, four hundred six million, one hundred sixty-six thousand, two hundred forty-three".