266790266393 has 32 divisors (see below), whose sum is σ = 309084561408. Its totient is φ = 225566208000.

The previous prime is 266790266381. The next prime is 266790266399. The reversal of 266790266393 is 393662097662.

It is not a de Polignac number, because 266790266393 - 2⁶ = 266790266329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266790266399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150134321 + ... + 150136097.

It is an arithmetic number, because the mean of its divisors is an integer number (9658892544).

Almost surely, 2^266790266393 is an apocalyptic number.

It is an amenable number.

266790266393 is a deficient number, since it is larger than the sum of its proper divisors (42294295015).

266790266393 is a wasteful number, since it uses less digits than its factorization.

266790266393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793.

The product of its (nonzero) digits is 26453952, while the sum is 59.

The spelling of 266790266393 in words is "two hundred sixty-six billion, seven hundred ninety million, two hundred sixty-six thousand, three hundred ninety-three".