23216531670 has 96 divisors (see below), whose sum is σ = 61906257504. Its totient is φ = 6033139200.

The previous prime is 23216531659. The next prime is 23216531677. The reversal of 23216531670 is 7613561232.

It is a super-2 number, since 2×23216531670² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23216531677) 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 47 ways as a sum of consecutive naturals, for example, 3734865 + ... + 3741075.

It is an arithmetic number, because the mean of its divisors is an integer number (644856849).

Almost surely, 2^23216531670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23216531670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30953128752).

23216531670 is an abundant number, since it is smaller than the sum of its proper divisors (38689725834).

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

23216531670 is a wasteful number, since it uses less digits than its factorization.

23216531670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278 (or 7275 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 23216531670 in words is "twenty-three billion, two hundred sixteen million, five hundred thirty-one thousand, six hundred seventy".