12516641332 has 24 divisors (see below), whose sum is σ = 24034136616. Its totient is φ = 5667911808.

The previous prime is 12516641327. The next prime is 12516641351. The reversal of 12516641332 is 23314661521.

It can be written as a sum of positive squares in 4 ways, for example, as 1801493136 + 10715148196 = 42444^2 + 103514^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2268043 + ... + 2273554.

It is an arithmetic number, because the mean of its divisors is an integer number (1001422359).

Almost surely, 2^12516641332 is an apocalyptic number.

It is an amenable number.

12516641332 is a deficient number, since it is larger than the sum of its proper divisors (11517495284).

12516641332 is a wasteful number, since it uses less digits than its factorization.

12516641332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541667 (or 4541665 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The spelling of 12516641332 in words is "twelve billion, five hundred sixteen million, six hundred forty-one thousand, three hundred thirty-two".