12401164261 has 8 divisors (see below), whose sum is σ = 12729737664. Its totient is φ = 12073834080.

The previous prime is 12401164253. The next prime is 12401164313. The reversal of 12401164261 is 16246110421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12401164261 - 2³ = 12401164253 is a prime.

It is a super-2 number, since 2×12401164261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401164231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290575 + ... + 330508.

It is an arithmetic number, because the mean of its divisors is an integer number (1591217208).

Almost surely, 2^12401164261 is an apocalyptic number.

It is an amenable number.

12401164261 is a deficient number, since it is larger than the sum of its proper divisors (328573403).

12401164261 is an equidigital number, since it uses as much as digits as its factorization.

12401164261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621611.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 12401164261 its reverse (16246110421), we get a palindrome (28647274682).

The spelling of 12401164261 in words is "twelve billion, four hundred one million, one hundred sixty-four thousand, two hundred sixty-one".