23611001621 has 16 divisors (see below), whose sum is σ = 24018479424. Its totient is φ = 23207864064.

The previous prime is 23611001597. The next prime is 23611001653. The reversal of 23611001621 is 12610011632.

It is not a de Polignac number, because 23611001621 - 2¹⁰ = 23611000597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23611001221) 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, 7103666 + ... + 7106988.

It is an arithmetic number, because the mean of its divisors is an integer number (1501154964).

Almost surely, 2^23611001621 is an apocalyptic number.

It is an amenable number.

23611001621 is a deficient number, since it is larger than the sum of its proper divisors (407477803).

23611001621 is a wasteful number, since it uses less digits than its factorization.

23611001621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 23611001621 in words is "twenty-three billion, six hundred eleven million, one thousand, six hundred twenty-one".