120654861715 has 16 divisors (see below), whose sum is σ = 145010597760. Its totient is φ = 96374154240.

The previous prime is 120654861713. The next prime is 120654861721. The reversal of 120654861715 is 517168456021.

It is not a de Polignac number, because 120654861715 - 2¹ = 120654861713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120654861713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12218230 + ... + 12228100.

It is an arithmetic number, because the mean of its divisors is an integer number (9063162360).

Almost surely, 2^120654861715 is an apocalyptic number.

120654861715 is a deficient number, since it is larger than the sum of its proper divisors (24355736045).

120654861715 is an equidigital number, since it uses as much as digits as its factorization.

120654861715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13422.

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 120654861715 in words is "one hundred twenty billion, six hundred fifty-four million, eight hundred sixty-one thousand, seven hundred fifteen".