266252976072 has 128 divisors (see below), whose sum is σ = 751773129600. Its totient is φ = 87293251584.

The previous prime is 266252976037. The next prime is 266252976091. The reversal of 266252976072 is 270679252662.

266252976072 is a `hidden beast` number, since 2 + 6 + 6 + 2 + 5 + 29 + 7 + 607 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9725988 + ... + 9753324.

It is an arithmetic number, because the mean of its divisors is an integer number (5873227575).

Almost surely, 2^266252976072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266252976072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375886564800).

266252976072 is an abundant number, since it is smaller than the sum of its proper divisors (485520153528).

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

266252976072 is a wasteful number, since it uses less digits than its factorization.

266252976072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28092 (or 28082 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 266252976072 in words is "two hundred sixty-six billion, two hundred fifty-two million, nine hundred seventy-six thousand, seventy-two".