12501052523566 has 16 divisors (see below), whose sum is σ = 19928421815760. Its totient is φ = 5860978917760.

The previous prime is 12501052523537. The next prime is 12501052523581. The reversal of 12501052523566 is 66532525010521.

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, 683407240 + ... + 683425531.

It is an arithmetic number, because the mean of its divisors is an integer number (1245526363485).

Almost surely, 2^{12501052523566} is an apocalyptic number.

12501052523566 is a deficient number, since it is larger than the sum of its proper divisors (7427369292194).

12501052523566 is a wasteful number, since it uses less digits than its factorization.

12501052523566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366833059.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 12501052523566 in words is "twelve trillion, five hundred one billion, fifty-two million, five hundred twenty-three thousand, five hundred sixty-six".