126066612361 has 4 divisors (see below), whose sum is σ = 126067326724. Its totient is φ = 126065898000.

The previous prime is 126066612341. The next prime is 126066612421. The reversal of 126066612361 is 163216660621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 87284793600 + 38781818761 = 295440^2 + 196931^2 .

It is a cyclic number.

It is not a de Polignac number, because 126066612361 - 2¹⁵ = 126066579593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126066612341) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 120271 + ... + 516331.

It is an arithmetic number, because the mean of its divisors is an integer number (31516831681).

Almost surely, 2^126066612361 is an apocalyptic number.

It is an amenable number.

126066612361 is a deficient number, since it is larger than the sum of its proper divisors (714363).

126066612361 is an equidigital number, since it uses as much as digits as its factorization.

126066612361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714362.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 126066612361 in words is "one hundred twenty-six billion, sixty-six million, six hundred twelve thousand, three hundred sixty-one".