2565651127011 has 32 divisors (see below), whose sum is σ = 4041588031488. Its totient is φ = 1416715708320.

The previous prime is 2565651126991. The next prime is 2565651127033. The reversal of 2565651127011 is 1107211565652.

It is a happy number.

It is not a de Polignac number, because 2565651127011 - 2¹⁰ = 2565651125987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2565651122011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2440501 + ... + 3329766.

It is an arithmetic number, because the mean of its divisors is an integer number (126299625984).

Almost surely, 2^{2565651127011} is an apocalyptic number.

2565651127011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2565651127011 is a deficient number, since it is larger than the sum of its proper divisors (1475936904477).

2565651127011 is a wasteful number, since it uses less digits than its factorization.

2565651127011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770991.

The product of its (nonzero) digits is 126000, while the sum is 42.

The spelling of 2565651127011 in words is "two trillion, five hundred sixty-five billion, six hundred fifty-one million, one hundred twenty-seven thousand, eleven".