266620306144 has 24 divisors (see below), whose sum is σ = 526217752368. Its totient is φ = 132977702400.

The previous prime is 266620306133. The next prime is 266620306163. The reversal of 266620306144 is 441603026662.

It is a junction number, because it is equal to n+sod(n) for n = 266620306097 and 266620306106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10376052 + ... + 10401715.

It is an arithmetic number, because the mean of its divisors is an integer number (21925739682).

Almost surely, 2^266620306144 is an apocalyptic number.

It is an amenable number.

266620306144 is a deficient number, since it is larger than the sum of its proper divisors (259597446224).

266620306144 is a wasteful number, since it uses less digits than its factorization.

266620306144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20778178 (or 20778170 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 266620306144 in words is "two hundred sixty-six billion, six hundred twenty million, three hundred six thousand, one hundred forty-four".