266052897660 has 48 divisors (see below), whose sum is σ = 812670671232. Its totient is φ = 64497672000.

The previous prime is 266052897619. The next prime is 266052897661. The reversal of 266052897660 is 66798250662.

It is a self number, because there is not a number n which added to its sum of digits gives 266052897660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266052897661) 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, 201554566 + ... + 201555885.

It is an arithmetic number, because the mean of its divisors is an integer number (16930638984).

Almost surely, 2^266052897660 is an apocalyptic number.

266052897660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266052897660 is an abundant number, since it is smaller than the sum of its proper divisors (546617773572).

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

266052897660 is a wasteful number, since it uses less digits than its factorization.

266052897660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403110474 (or 403110472 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 266052897660 in words is "two hundred sixty-six billion, fifty-two million, eight hundred ninety-seven thousand, six hundred sixty".