120564213331065 has 64 divisors (see below), whose sum is σ = 223725771878400. Its totient is φ = 54304344601344.

The previous prime is 120564213331061. The next prime is 120564213331117. The reversal of 120564213331065 is 560133312465021.

It is a happy number.

It is not a de Polignac number, because 120564213331065 - 2² = 120564213331061 is a prime.

It is a super-2 number, since 2×120564213331065² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120564213331061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27376557 + ... + 31473866.

It is an arithmetic number, because the mean of its divisors is an integer number (3495715185600).

Almost surely, 2^{120564213331065} is an apocalyptic number.

120564213331065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120564213331065 is a deficient number, since it is larger than the sum of its proper divisors (103161558547335).

120564213331065 is a wasteful number, since it uses less digits than its factorization.

120564213331065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58850726.

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 120564213331065 its reverse (560133312465021), we get a palindrome (680697525796086).

The spelling of 120564213331065 in words is "one hundred twenty trillion, five hundred sixty-four billion, two hundred thirteen million, three hundred thirty-one thousand, sixty-five".