12165500054 has 8 divisors (see below), whose sum is σ = 18310531680. Its totient is φ = 6061989496.

The previous prime is 12165500051. The next prime is 12165500059. The reversal of 12165500054 is 45000556121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12165500051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10379534 + ... + 10380705.

It is an arithmetic number, because the mean of its divisors is an integer number (2288816460).

Almost surely, 2^12165500054 is an apocalyptic number.

12165500054 is a deficient number, since it is larger than the sum of its proper divisors (6145031626).

12165500054 is a wasteful number, since it uses less digits than its factorization.

12165500054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20760534.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 12165500054 in words is "twelve billion, one hundred sixty-five million, five hundred thousand, fifty-four".