265235211221064 has 64 divisors (see below), whose sum is σ = 757819542887040. Its totient is φ = 75781023552000.

The previous prime is 265235211221041. The next prime is 265235211221161. The reversal of 265235211221064 is 460122112532562.

265235211221064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×265235211221064³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 23068314 + ... + 32597814.

It is an arithmetic number, because the mean of its divisors is an integer number (11840930357610).

Almost surely, 2^{265235211221064} is an apocalyptic number.

265235211221064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

265235211221064 is an abundant number, since it is smaller than the sum of its proper divisors (492584331665976).

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

265235211221064 is a wasteful number, since it uses less digits than its factorization.

265235211221064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9695190 (or 9695186 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 265235211221064 in words is "two hundred sixty-five trillion, two hundred thirty-five billion, two hundred eleven million, two hundred twenty-one thousand, sixty-four".