126306362661 has 8 divisors (see below), whose sum is σ = 169637743104. Its totient is φ = 83589612000.

The previous prime is 126306362657. The next prime is 126306362683. The reversal of 126306362661 is 166263603621.

It is a happy number.

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

It is not a de Polignac number, because 126306362661 - 2² = 126306362657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126306362261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153656965 + ... + 153657786.

It is an arithmetic number, because the mean of its divisors is an integer number (21204717888).

Almost surely, 2^126306362661 is an apocalyptic number.

It is an amenable number.

126306362661 is a deficient number, since it is larger than the sum of its proper divisors (43331380443).

126306362661 is a wasteful number, since it uses less digits than its factorization.

126306362661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307314891.

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 126306362661 in words is "one hundred twenty-six billion, three hundred six million, three hundred sixty-two thousand, six hundred sixty-one".