266266460642 has 16 divisors (see below), whose sum is σ = 491568850752. Its totient is φ = 105336182160.

The previous prime is 266266460623. The next prime is 266266460671. The reversal of 266266460642 is 246064662662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731501084 + ... + 731501447.

It is an arithmetic number, because the mean of its divisors is an integer number (30723053172).

Almost surely, 2^266266460642 is an apocalyptic number.

266266460642 is a deficient number, since it is larger than the sum of its proper divisors (225302390110).

266266460642 is a wasteful number, since it uses less digits than its factorization.

266266460642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463002553.

The product of its (nonzero) digits is 5971968, while the sum is 50.

The spelling of 266266460642 in words is "two hundred sixty-six billion, two hundred sixty-six million, four hundred sixty thousand, six hundred forty-two".