12511350516 has 72 divisors (see below), whose sum is σ = 33977435520. Its totient is φ = 3572771328.

The previous prime is 12511350497. The next prime is 12511350547. The reversal of 12511350516 is 61505311521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1396740 + ... + 1405668.

Almost surely, 2^12511350516 is an apocalyptic number.

It is an amenable number.

12511350516 is an abundant number, since it is smaller than the sum of its proper divisors (21466085004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12511350516 is a wasteful number, since it uses less digits than its factorization.

12511350516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11333 (or 11324 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 12511350516 in words is "twelve billion, five hundred eleven million, three hundred fifty thousand, five hundred sixteen".