12122665645526 has 16 divisors (see below), whose sum is σ = 18983611191600. Its totient is φ = 5798630321568.

The previous prime is 12122665645471. The next prime is 12122665645537. The reversal of 12122665645526 is 62554656622121.

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, 958761920 + ... + 958774563.

It is an arithmetic number, because the mean of its divisors is an integer number (1186475699475).

Almost surely, 2^{12122665645526} is an apocalyptic number.

12122665645526 is a deficient number, since it is larger than the sum of its proper divisors (6860945546074).

12122665645526 is a wasteful number, since it uses less digits than its factorization.

12122665645526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917536623.

The product of its digits is 10368000, while the sum is 53.

The spelling of 12122665645526 in words is "twelve trillion, one hundred twenty-two billion, six hundred sixty-five million, six hundred forty-five thousand, five hundred twenty-six".