266946451392 has 112 divisors (see below), whose sum is σ = 740660891040. Its totient is φ = 84736770048.

The previous prime is 266946451391. The next prime is 266946451411. The reversal of 266946451392 is 293154649662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266946451391) 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, 78088 + ... + 734840.

It is an arithmetic number, because the mean of its divisors is an integer number (6613043670).

Almost surely, 2^266946451392 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 266946451392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370330445520).

266946451392 is an abundant number, since it is smaller than the sum of its proper divisors (473714439648).

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

266946451392 is a wasteful number, since it uses less digits than its factorization.

266946451392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656870 (or 656860 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 57.

The spelling of 266946451392 in words is "two hundred sixty-six billion, nine hundred forty-six million, four hundred fifty-one thousand, three hundred ninety-two".