23304144525561 has 6 divisors (see below), whose sum is σ = 33661542092490. Its totient is φ = 15536096350368.

The previous prime is 23304144525461. The next prime is 23304144525617. The reversal of 23304144525561 is 16552544140332.

23304144525561 is a `hidden beast` number, since 2 + 3 + 3 + 0 + 4 + 1 + 44 + 52 + 556 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18712381259961 + 4591763265600 = 4325781^2 + 2142840^2 .

It is not a de Polignac number, because 23304144525561 - 2⁴² = 18906098014457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23304144525461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1294674695856 + ... + 1294674695873.

It is an arithmetic number, because the mean of its divisors is an integer number (5610257015415).

Almost surely, 2^{23304144525561} is an apocalyptic number.

It is an amenable number.

23304144525561 is a deficient number, since it is larger than the sum of its proper divisors (10357397566929).

23304144525561 is a wasteful number, since it uses less digits than its factorization.

23304144525561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589349391735 (or 2589349391732 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

Adding to 23304144525561 its reverse (16552544140332), we get a palindrome (39856688665893).

The spelling of 23304144525561 in words is "twenty-three trillion, three hundred four billion, one hundred forty-four million, five hundred twenty-five thousand, five hundred sixty-one".