120645054986 has 4 divisors (see below), whose sum is σ = 180967582482. Its totient is φ = 60322527492.

The previous prime is 120645054949. The next prime is 120645055049. The reversal of 120645054986 is 689450546021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 689450546021 = 138893 ⋅4963897.

It can be written as a sum of positive squares in only one way, i.e., 113589894961 + 7055160025 = 337031^2 + 83995^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30161263745 + ... + 30161263748.

Almost surely, 2^120645054986 is an apocalyptic number.

120645054986 is a deficient number, since it is larger than the sum of its proper divisors (60322527496).

120645054986 is an equidigital number, since it uses as much as digits as its factorization.

120645054986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60322527495.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 120645054986 in words is "one hundred twenty billion, six hundred forty-five million, fifty-four thousand, nine hundred eighty-six".