12426551564025 has 12 divisors (see below), whose sum is σ = 20545231919312. Its totient is φ = 6627494167440.

The previous prime is 12426551564023. The next prime is 12426551564081. The reversal of 12426551564025 is 52046515562421.

It is not a de Polignac number, because 12426551564025 - 2¹ = 12426551564023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12426551564023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82843677019 + ... + 82843677168.

Almost surely, 2^{12426551564025} is an apocalyptic number.

12426551564025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12426551564025 is a deficient number, since it is larger than the sum of its proper divisors (8118680355287).

12426551564025 is a wasteful number, since it uses less digits than its factorization.

12426551564025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165687354200 (or 165687354195 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 48.

The spelling of 12426551564025 in words is "twelve trillion, four hundred twenty-six billion, five hundred fifty-one million, five hundred sixty-four thousand, twenty-five".