23165402352 has 20 divisors (see below), whose sum is σ = 59843956200. Its totient is φ = 7721800768.

The previous prime is 23165402329. The next prime is 23165402363. The reversal of 23165402352 is 25320456132.

It is a happy number.

It is a super-2 number, since 2×23165402352² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 241306227 + ... + 241306322.

It is an arithmetic number, because the mean of its divisors is an integer number (2992197810).

Almost surely, 2^23165402352 is an apocalyptic number.

It is an amenable number.

23165402352 is an abundant number, since it is smaller than the sum of its proper divisors (36678553848).

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

23165402352 is a wasteful number, since it uses less digits than its factorization.

23165402352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482612560 (or 482612554 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 23165402352 its reverse (25320456132), we get a palindrome (48485858484).

The spelling of 23165402352 in words is "twenty-three billion, one hundred sixty-five million, four hundred two thousand, three hundred fifty-two".