265160640 has 56 divisors (see below), whose sum is σ = 841888080. Its totient is φ = 70709248.

The previous prime is 265160627. The next prime is 265160641. The reversal of 265160640 is 46061562.

265160640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 265160598 and 265160607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265160641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137145 + ... + 139064.

Almost surely, 2^265160640 is an apocalyptic number.

265160640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265160640 is an abundant number, since it is smaller than the sum of its proper divisors (576727440).

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

265160640 is a wasteful number, since it uses less digits than its factorization.

265160640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276229 (or 276219 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 265160640 is about 16283.7538669681. The cubic root of 265160640 is about 642.4455908343.

The spelling of 265160640 in words is "two hundred sixty-five million, one hundred sixty thousand, six hundred forty".