126311248165 has 8 divisors (see below), whose sum is σ = 151575982488. Its totient is φ = 101047342080.

The previous prime is 126311248111. The next prime is 126311248181. The reversal of 126311248165 is 561842113621.

It can be written as a sum of positive squares in 4 ways, for example, as 32833077601 + 93478170564 = 181199^2 + 305742^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126311248165 - 2²¹ = 126309151013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201885 + ... + 541645.

It is an arithmetic number, because the mean of its divisors is an integer number (18946997811).

Almost surely, 2^126311248165 is an apocalyptic number.

It is an amenable number.

126311248165 is a deficient number, since it is larger than the sum of its proper divisors (25264734323).

126311248165 is an equidigital number, since it uses as much as digits as its factorization.

126311248165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414119.

The product of its digits is 69120, while the sum is 40.

The spelling of 126311248165 in words is "one hundred twenty-six billion, three hundred eleven million, two hundred forty-eight thousand, one hundred sixty-five".