12050645565 has 16 divisors (see below), whose sum is σ = 22035466368. Its totient is φ = 5508866496.

The previous prime is 12050645549. The next prime is 12050645681. The reversal of 12050645565 is 56554605021.

It is a happy number.

It is not a de Polignac number, because 12050645565 - 2⁴ = 12050645549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57383922 + ... + 57384131.

It is an arithmetic number, because the mean of its divisors is an integer number (1377216648).

Almost surely, 2^12050645565 is an apocalyptic number.

12050645565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12050645565 is a deficient number, since it is larger than the sum of its proper divisors (9984820803).

12050645565 is a wasteful number, since it uses less digits than its factorization.

12050645565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114768068.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 12050645565 in words is "twelve billion, fifty million, six hundred forty-five thousand, five hundred sixty-five".