120666061 has 4 divisors (see below), whose sum is σ = 123233472. Its totient is φ = 118098652.

The previous prime is 120666059. The next prime is 120666067. The reversal of 120666061 is 160666021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 160666021 = 311 ⋅516611.

It is a cyclic number.

It is not a de Polignac number, because 120666061 - 2¹ = 120666059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120666067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283635 + ... + 1283728.

It is an arithmetic number, because the mean of its divisors is an integer number (30808368).

Almost surely, 2^120666061 is an apocalyptic number.

It is an amenable number.

120666061 is a deficient number, since it is larger than the sum of its proper divisors (2567411).

120666061 is an equidigital number, since it uses as much as digits as its factorization.

120666061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567410.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 120666061 is about 10984.8104671860. The cubic root of 120666061 is about 494.1533136667.

The spelling of 120666061 in words is "one hundred twenty million, six hundred sixty-six thousand, sixty-one".