2566434135055 has 128 divisors (see below), whose sum is σ = 3841966080000. Its totient is φ = 1608120138240.

The previous prime is 2566434134947. The next prime is 2566434135071. The reversal of 2566434135055 is 5505314346652.

It is not a de Polignac number, because 2566434135055 - 2⁹ = 2566434134543 is a prime.

It is a super-3 number, since 3×2566434135055³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 369427092 + ... + 369434038.

It is an arithmetic number, because the mean of its divisors is an integer number (30015360000).

Almost surely, 2^{2566434135055} is an apocalyptic number.

2566434135055 is a deficient number, since it is larger than the sum of its proper divisors (1275531944945).

2566434135055 is a wasteful number, since it uses less digits than its factorization.

2566434135055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7277.

The product of its (nonzero) digits is 6480000, while the sum is 49.

The spelling of 2566434135055 in words is "two trillion, five hundred sixty-six billion, four hundred thirty-four million, one hundred thirty-five thousand, fifty-five".