266912064 has 112 divisors (see below), whose sum is σ = 794552640. Its totient is φ = 87851520.

The previous prime is 266912029. The next prime is 266912069. The reversal of 266912064 is 460219662.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266912069) 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, 142494 + ... + 144354.

It is an arithmetic number, because the mean of its divisors is an integer number (7094220).

Almost surely, 2^266912064 is an apocalyptic number.

266912064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266912064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397276320).

266912064 is an abundant number, since it is smaller than the sum of its proper divisors (527640576).

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

266912064 is a wasteful number, since it uses less digits than its factorization.

266912064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965 (or 1949 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 266912064 is about 16337.4436188775. The cubic root of 266912064 is about 643.8569696375.

The spelling of 266912064 in words is "two hundred sixty-six million, nine hundred twelve thousand, sixty-four".