12601401165320 has 128 divisors (see below), whose sum is σ = 32560346649600. Its totient is φ = 4340925561600.

The previous prime is 12601401165319. The next prime is 12601401165337. The reversal of 12601401165320 is 2356110410621.

It is a super-2 number, since 2×12601401165320² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272905835 + ... + 272952005.

It is an arithmetic number, because the mean of its divisors is an integer number (254377708200).

Almost surely, 2^{12601401165320} is an apocalyptic number.

12601401165320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12601401165320 is an abundant number, since it is smaller than the sum of its proper divisors (19958945484280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12601401165320 is a wasteful number, since it uses less digits than its factorization.

12601401165320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78859 (or 78855 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 12601401165320 its reverse (2356110410621), we get a palindrome (14957511575941).

It can be divided in two parts, 12601401 and 165320, that added together give a palindrome (12766721).

The spelling of 12601401165320 in words is "twelve trillion, six hundred one billion, four hundred one million, one hundred sixty-five thousand, three hundred twenty".