23166054550 has 24 divisors (see below), whose sum is σ = 43241145336. Its totient is φ = 9233672640.

The previous prime is 23166054539. The next prime is 23166054559. The reversal of 23166054550 is 5545066132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23166054559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 804439 + ... + 832738.

It is an arithmetic number, because the mean of its divisors is an integer number (1801714389).

Almost surely, 2^23166054550 is an apocalyptic number.

23166054550 is a deficient number, since it is larger than the sum of its proper divisors (20075090786).

23166054550 is a wasteful number, since it uses less digits than its factorization.

23166054550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637472 (or 1637467 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 23166054550 in words is "twenty-three billion, one hundred sixty-six million, fifty-four thousand, five hundred fifty".