120440435565 has 16 divisors (see below), whose sum is σ = 192852168768. Its totient is φ = 64185741696.

The previous prime is 120440435441. The next prime is 120440435581. The reversal of 120440435565 is 565534044021.

It is not a de Polignac number, because 120440435565 - 2⁸ = 120440435309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3052072 + ... + 3091281.

It is an arithmetic number, because the mean of its divisors is an integer number (12053260548).

Almost surely, 2^120440435565 is an apocalyptic number.

120440435565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120440435565 is a deficient number, since it is larger than the sum of its proper divisors (72411733203).

120440435565 is a wasteful number, since it uses less digits than its factorization.

120440435565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6144668.

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 120440435565 its reverse (565534044021), we get a palindrome (685974479586).

The spelling of 120440435565 in words is "one hundred twenty billion, four hundred forty million, four hundred thirty-five thousand, five hundred sixty-five".