266427912556513 has 16 divisors (see below), whose sum is σ = 270343595023360. Its totient is φ = 262519506676224.

The previous prime is 266427912556501. The next prime is 266427912556517. The reversal of 266427912556513 is 315655219724662.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266427912556513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266427912556517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440955145 + ... + 441558937.

It is an arithmetic number, because the mean of its divisors is an integer number (16896474688960).

Almost surely, 2^{266427912556513} is an apocalyptic number.

It is an amenable number.

266427912556513 is a deficient number, since it is larger than the sum of its proper divisors (3915682466847).

266427912556513 is a wasteful number, since it uses less digits than its factorization.

266427912556513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609808.

The product of its digits is 163296000, while the sum is 64.

The spelling of 266427912556513 in words is "two hundred sixty-six trillion, four hundred twenty-seven billion, nine hundred twelve million, five hundred fifty-six thousand, five hundred thirteen".