12505016833 has 8 divisors (see below), whose sum is σ = 12965049000. Its totient is φ = 12046906368.

The previous prime is 12505016827. The next prime is 12505016863. The reversal of 12505016833 is 33861050521.

It can be written as a sum of positive squares in 4 ways, for example, as 2832687729 + 9672329104 = 53223^2 + 98348^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12505016833 is a prime.

It is a super-2 number, since 2×12505016833² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12505016863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467166 + ... + 493207.

It is an arithmetic number, because the mean of its divisors is an integer number (1620631125).

Almost surely, 2^12505016833 is an apocalyptic number.

It is an amenable number.

12505016833 is a deficient number, since it is larger than the sum of its proper divisors (460032167).

12505016833 is an equidigital number, since it uses as much as digits as its factorization.

12505016833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960851.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 12505016833 in words is "twelve billion, five hundred five million, sixteen thousand, eight hundred thirty-three".