23345544204401 has 16 divisors (see below), whose sum is σ = 24803620155600. Its totient is φ = 21931022066688.

The previous prime is 23345544204313. The next prime is 23345544204461. The reversal of 23345544204401 is 10440244554332.

It can be written as a sum of positive squares in 8 ways, for example, as 247283420176 + 23098260784225 = 497276^2 + 4806065^2 .

It is a cyclic number.

It is not a de Polignac number, because 23345544204401 - 2¹⁴ = 23345544188017 is a prime.

It is a super-2 number, since 2×23345544204401² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23345544204461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138539885 + ... + 138708293.

It is an arithmetic number, because the mean of its divisors is an integer number (1550226259725).

Almost surely, 2^{23345544204401} is an apocalyptic number.

It is an amenable number.

23345544204401 is a deficient number, since it is larger than the sum of its proper divisors (1458075951199).

23345544204401 is a wasteful number, since it uses less digits than its factorization.

23345544204401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297668.

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 23345544204401 its reverse (10440244554332), we get a palindrome (33785788758733).

The spelling of 23345544204401 in words is "twenty-three trillion, three hundred forty-five billion, five hundred forty-four million, two hundred four thousand, four hundred one".