12059998665 has 128 divisors (see below), whose sum is σ = 23518494720. Its totient is φ = 5197132800.

The previous prime is 12059998637. The next prime is 12059998673. The reversal of 12059998665 is 56689995021.

It is not a de Polignac number, because 12059998665 - 2⁷ = 12059998537 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12059998599 and 12059998608.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19482726 + ... + 19483344.

It is an arithmetic number, because the mean of its divisors is an integer number (183738240).

Almost surely, 2^12059998665 is an apocalyptic number.

12059998665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12059998665 is a deficient number, since it is larger than the sum of its proper divisors (11458496055).

12059998665 is a wasteful number, since it uses less digits than its factorization.

12059998665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975.

The product of its (nonzero) digits is 10497600, while the sum is 60.

The spelling of 12059998665 in words is "twelve billion, fifty-nine million, nine hundred ninety-eight thousand, six hundred sixty-five".