23520559999 has 2 divisors, whose sum is σ = 23520560000. Its totient is φ = 23520559998.

The previous prime is 23520559973. The next prime is 23520560017. The reversal of 23520559999 is 99995502532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23520559999 - 2⁷ = 23520559871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23520559969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11760279999 + 11760280000.

It is an arithmetic number, because the mean of its divisors is an integer number (11760280000).

Almost surely, 2^23520559999 is an apocalyptic number.

23520559999 is a deficient number, since it is larger than the sum of its proper divisors (1).

23520559999 is an equidigital number, since it uses as much as digits as its factorization.

23520559999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9841500, while the sum is 58.

The spelling of 23520559999 in words is "twenty-three billion, five hundred twenty million, five hundred fifty-nine thousand, nine hundred ninety-nine".