23259606520 has 64 divisors (see below), whose sum is σ = 54957683520. Its totient is φ = 8842589184.

The previous prime is 23259606493. The next prime is 23259606547. The reversal of 23259606520 is 2560695232.

It is an interprime number because it is at equal distance from previous prime (23259606493) and next prime (23259606547).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63924 + ... + 224956.

It is an arithmetic number, because the mean of its divisors is an integer number (858713805).

Almost surely, 2^23259606520 is an apocalyptic number.

23259606520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23259606520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27478841760).

23259606520 is an abundant number, since it is smaller than the sum of its proper divisors (31698077000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23259606520 is a wasteful number, since it uses less digits than its factorization.

23259606520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161224 (or 161220 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 23259606520 in words is "twenty-three billion, two hundred fifty-nine million, six hundred six thousand, five hundred twenty".