12252165505 has 16 divisors (see below), whose sum is σ = 15171169104. Its totient is φ = 9492843520.

The previous prime is 12252165473. The next prime is 12252165517. The reversal of 12252165505 is 50556125221.

It can be written as a sum of positive squares in 8 ways, for example, as 2508106561 + 9744058944 = 50081^2 + 98712^2 .

It is not a de Polignac number, because 12252165505 - 2⁵ = 12252165473 is a prime.

It is a Duffinian 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, 190042 + ... + 246211.

It is an arithmetic number, because the mean of its divisors is an integer number (948198069).

Almost surely, 2^12252165505 is an apocalyptic number.

It is an amenable number.

12252165505 is a deficient number, since it is larger than the sum of its proper divisors (2919003599).

12252165505 is a wasteful number, since it uses less digits than its factorization.

12252165505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436436.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 12252165505 in words is "twelve billion, two hundred fifty-two million, one hundred sixty-five thousand, five hundred five".