23644200612161 has 16 divisors (see below), whose sum is σ = 24053183408448. Its totient is φ = 23235916392000.

The previous prime is 23644200612107. The next prime is 23644200612209. The reversal of 23644200612161 is 16121600244632.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23644200612161 is a prime.

It is a super-2 number, since 2×23644200612161² (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 (23644200612101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331612631 + ... + 331683923.

It is an arithmetic number, because the mean of its divisors is an integer number (1503323963028).

Almost surely, 2^{23644200612161} is an apocalyptic number.

It is an amenable number.

23644200612161 is a deficient number, since it is larger than the sum of its proper divisors (408982796287).

23644200612161 is a wasteful number, since it uses less digits than its factorization.

23644200612161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76112.

The product of its (nonzero) digits is 82944, while the sum is 38.

Adding to 23644200612161 its reverse (16121600244632), we get a palindrome (39765800856793).

The spelling of 23644200612161 in words is "twenty-three trillion, six hundred forty-four billion, two hundred million, six hundred twelve thousand, one hundred sixty-one".