266880120455 has 16 divisors (see below), whose sum is σ = 365178953664. Its totient is φ = 185487720960.

The previous prime is 266880120443. The next prime is 266880120469. The reversal of 266880120455 is 554021088662.

It is not a de Polignac number, because 266880120455 - 2⁶ = 266880120391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120759131 + ... + 120761340.

It is an arithmetic number, because the mean of its divisors is an integer number (22823684604).

Almost surely, 2^266880120455 is an apocalyptic number.

266880120455 is a deficient number, since it is larger than the sum of its proper divisors (98298833209).

266880120455 is a wasteful number, since it uses less digits than its factorization.

266880120455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241520506.

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 266880120455 in words is "two hundred sixty-six billion, eight hundred eighty million, one hundred twenty thousand, four hundred fifty-five".