126336513666 has 64 divisors (see below), whose sum is σ = 276801100416. Its totient is φ = 38123251200.

The previous prime is 126336513649. The next prime is 126336513683. The reversal of 126336513666 is 666315633621.

It is an interprime number because it is at equal distance from previous prime (126336513649) and next prime (126336513683).

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 31 ways as a sum of consecutive naturals, for example, 24706326 + ... + 24711438.

It is an arithmetic number, because the mean of its divisors is an integer number (4325017194).

Almost surely, 2^126336513666 is an apocalyptic number.

126336513666 is an abundant number, since it is smaller than the sum of its proper divisors (150464586750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126336513666 is a wasteful number, since it uses less digits than its factorization.

126336513666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627.

The product of its digits is 2099520, while the sum is 48.

The spelling of 126336513666 in words is "one hundred twenty-six billion, three hundred thirty-six million, five hundred thirteen thousand, six hundred sixty-six".