126242451406666 has 32 divisors (see below), whose sum is σ = 216704345421312. Its totient is φ = 54031774291200.

The previous prime is 126242451406651. The next prime is 126242451406667. The reversal of 126242451406666 is 666604154242621.

It is not an unprimeable number, because it can be changed into a prime (126242451406667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31697695 + ... + 35457421.

It is an arithmetic number, because the mean of its divisors is an integer number (6772010794416).

Almost surely, 2^{126242451406666} is an apocalyptic number.

126242451406666 is a deficient number, since it is larger than the sum of its proper divisors (90461894014646).

126242451406666 is a wasteful number, since it uses less digits than its factorization.

126242451406666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762934.

The product of its (nonzero) digits is 19906560, while the sum is 55.

The spelling of 126242451406666 in words is "one hundred twenty-six trillion, two hundred forty-two billion, four hundred fifty-one million, four hundred six thousand, six hundred sixty-six".