265761672 has 128 divisors (see below), whose sum is σ = 761080320. Its totient is φ = 76608000.

The previous prime is 265761659. The next prime is 265761679. The reversal of 265761672 is 276167562.

It is not an unprimeable number, because it can be changed into a prime (265761679) 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, 465147 + ... + 465717.

It is an arithmetic number, because the mean of its divisors is an integer number (5945940).

Almost surely, 2^265761672 is an apocalyptic number.

265761672 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 265761672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380540160).

265761672 is an abundant number, since it is smaller than the sum of its proper divisors (495318648).

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

265761672 is a wasteful number, since it uses less digits than its factorization.

265761672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 671 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 265761672 is about 16302.1983793598. The cubic root of 265761672 is about 642.9306288622.

The spelling of 265761672 in words is "two hundred sixty-five million, seven hundred sixty-one thousand, six hundred seventy-two".