120445148177721 has 24 divisors (see below), whose sum is σ = 176106232716960. Its totient is φ = 79314102697536.

The previous prime is 120445148177611. The next prime is 120445148177737. The reversal of 120445148177721 is 127771841544021.

120445148177721 is a `hidden beast` number, since 1 + 2 + 0 + 44 + 51 + 481 + 7 + 7 + 72 + 1 = 666.

It is not a de Polignac number, because 120445148177721 - 2⁹ = 120445148177209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120445148176721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11585791 + ... + 19368036.

It is an arithmetic number, because the mean of its divisors is an integer number (7337759696540).

Almost surely, 2^{120445148177721} is an apocalyptic number.

It is an amenable number.

120445148177721 is a deficient number, since it is larger than the sum of its proper divisors (55661084539239).

120445148177721 is a wasteful number, since it uses less digits than its factorization.

120445148177721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30959125 (or 30959122 counting only the distinct ones).

The product of its (nonzero) digits is 3512320, while the sum is 54.

The spelling of 120445148177721 in words is "one hundred twenty trillion, four hundred forty-five billion, one hundred forty-eight million, one hundred seventy-seven thousand, seven hundred twenty-one".