23125509663 has 16 divisors (see below), whose sum is σ = 31441011840. Its totient is φ = 15113974304.

The previous prime is 23125509599. The next prime is 23125509677. The reversal of 23125509663 is 36690552132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23125509663 - 2⁶ = 23125509599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23125509763) 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, 142420 + ... + 257942.

It is an arithmetic number, because the mean of its divisors is an integer number (1965063240).

Almost surely, 2^23125509663 is an apocalyptic number.

23125509663 is a deficient number, since it is larger than the sum of its proper divisors (8315502177).

23125509663 is a wasteful number, since it uses less digits than its factorization.

23125509663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116838.

The product of its (nonzero) digits is 291600, while the sum is 42.

The spelling of 23125509663 in words is "twenty-three billion, one hundred twenty-five million, five hundred nine thousand, six hundred sixty-three".