266465672 has 64 divisors (see below), whose sum is σ = 572780160. Its totient is φ = 115033600.

The previous prime is 266465669. The next prime is 266465681. The reversal of 266465672 is 276564662.

It is a super-3 number, since 3×266465672³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349772 + ... + 350532.

It is an arithmetic number, because the mean of its divisors is an integer number (8949690).

Almost surely, 2^266465672 is an apocalyptic number.

266465672 is a gapful number since it is divisible by the number (22) 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 266465672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286390080).

266465672 is an abundant number, since it is smaller than the sum of its proper divisors (306314488).

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

266465672 is a wasteful number, since it uses less digits than its factorization.

266465672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 970 counting only the distinct ones).

The product of its digits is 725760, while the sum is 44.

The square root of 266465672 is about 16323.7762787904. The cubic root of 266465672 is about 643.4978339093.

The spelling of 266465672 in words is "two hundred sixty-six million, four hundred sixty-five thousand, six hundred seventy-two".