23571030640 has 160 divisors (see below), whose sum is σ = 60121152000. Its totient is φ = 8559903744.

The previous prime is 23571030577. The next prime is 23571030751. The reversal of 23571030640 is 4603017532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6125197 + ... + 6129043.

It is an arithmetic number, because the mean of its divisors is an integer number (375757200).

Almost surely, 2^23571030640 is an apocalyptic number.

23571030640 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 23571030640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30060576000).

23571030640 is an abundant number, since it is smaller than the sum of its proper divisors (36550121360).

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

23571030640 is a wasteful number, since it uses less digits than its factorization.

23571030640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047 (or 4041 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 23571030640 in words is "twenty-three billion, five hundred seventy-one million, thirty thousand, six hundred forty".