23165432340 has 24 divisors (see below), whose sum is σ = 64863210720. Its totient is φ = 6177448608.

The previous prime is 23165432293. The next prime is 23165432363. The reversal of 23165432340 is 4323456132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193045210 + ... + 193045329.

It is an arithmetic number, because the mean of its divisors is an integer number (2702633780).

Almost surely, 2^23165432340 is an apocalyptic number.

23165432340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23165432340 is an abundant number, since it is smaller than the sum of its proper divisors (41697778380).

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

23165432340 is a wasteful number, since it uses less digits than its factorization.

23165432340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386090551 (or 386090549 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 23165432340 its reverse (4323456132), we get a palindrome (27488888472).

The spelling of 23165432340 in words is "twenty-three billion, one hundred sixty-five million, four hundred thirty-two thousand, three hundred forty".