13123524640516 has 24 divisors (see below), whose sum is σ = 23028688906776. Its totient is φ = 6543906700800.

The previous prime is 13123524640511. The next prime is 13123524640517. The reversal of 13123524640516 is 61504642532131.

It can be written as a sum of positive squares in 4 ways, for example, as 2520061000900 + 10603463639616 = 1587470^2 + 3256296^2 .

It is not an unprimeable number, because it can be changed into a prime (13123524640511) 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, 6122410 + ... + 7983166.

It is an arithmetic number, because the mean of its divisors is an integer number (959528704449).

Almost surely, 2^{13123524640516} is an apocalyptic number.

It is an amenable number.

13123524640516 is a deficient number, since it is larger than the sum of its proper divisors (9905164266260).

13123524640516 is a wasteful number, since it uses less digits than its factorization.

13123524640516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865559 (or 1865557 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 13123524640516 in words is "thirteen trillion, one hundred twenty-three billion, five hundred twenty-four million, six hundred forty thousand, five hundred sixteen".