266772133908 has 96 divisors (see below), whose sum is σ = 793981009920. Its totient is φ = 75878765280.

The previous prime is 266772133907. The next prime is 266772133961. The reversal of 266772133908 is 809331277662.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266772133907) 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, 622608 + ... + 959783.

It is an arithmetic number, because the mean of its divisors is an integer number (8270635520).

Almost surely, 2^266772133908 is an apocalyptic number.

266772133908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

266772133908 is an abundant number, since it is smaller than the sum of its proper divisors (527208876012).

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

266772133908 is a wasteful number, since it uses less digits than its factorization.

266772133908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582634 (or 1582626 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 266772133908 in words is "two hundred sixty-six billion, seven hundred seventy-two million, one hundred thirty-three thousand, nine hundred eight".