120440656463 has 16 divisors (see below), whose sum is σ = 126139320576. Its totient is φ = 114781043520.

The previous prime is 120440656429. The next prime is 120440656471. The reversal of 120440656463 is 364656044021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120440656463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120440656463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120440616463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11431508 + ... + 11442038.

It is an arithmetic number, because the mean of its divisors is an integer number (7883707536).

Almost surely, 2^120440656463 is an apocalyptic number.

120440656463 is a deficient number, since it is larger than the sum of its proper divisors (5698664113).

120440656463 is a wasteful number, since it uses less digits than its factorization.

120440656463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12334.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 120440656463 in words is "one hundred twenty billion, four hundred forty million, six hundred fifty-six thousand, four hundred sixty-three".