23513560236 has 72 divisors (see below), whose sum is σ = 61276479264. Its totient is φ = 7596910080.

The previous prime is 23513560211. The next prime is 23513560243. The reversal of 23513560236 is 63206531532.

23513560236 is a `hidden beast` number, since 2 + 3 + 5 + 13 + 5 + 602 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23513560236.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 316756 + ... + 383876.

It is an arithmetic number, because the mean of its divisors is an integer number (851062212).

Almost surely, 2^23513560236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23513560236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30638239632).

23513560236 is an abundant number, since it is smaller than the sum of its proper divisors (37762919028).

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

23513560236 is a wasteful number, since it uses less digits than its factorization.

23513560236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67431 (or 67426 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 23513560236 in words is "twenty-three billion, five hundred thirteen million, five hundred sixty thousand, two hundred thirty-six".