12516643306630 has 16 divisors (see below), whose sum is σ = 22530018178080. Its totient is φ = 5006643939072.

The previous prime is 12516643306603. The next prime is 12516643306633. The reversal of 12516643306630 is 3660334661521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516643306633) 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, 2832886 + ... + 5749654.

It is an arithmetic number, because the mean of its divisors is an integer number (1408126136130).

Almost surely, 2^{12516643306630} is an apocalyptic number.

12516643306630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12516643306630 is a deficient number, since it is larger than the sum of its proper divisors (10013374871450).

12516643306630 is a wasteful number, since it uses less digits than its factorization.

12516643306630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345903.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 12516643306630 in words is "twelve trillion, five hundred sixteen billion, six hundred forty-three million, three hundred six thousand, six hundred thirty".