265240664005420 has 24 divisors (see below), whose sum is σ = 557147524046400. Its totient is φ = 106069193290752.

The previous prime is 265240664005411. The next prime is 265240664005441. The reversal of 265240664005420 is 24500466042562.

It is a super-2 number, since 2×265240664005420² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691939125 + ... + 1692095884.

It is an arithmetic number, because the mean of its divisors is an integer number (23214480168600).

Almost surely, 2^{265240664005420} is an apocalyptic number.

265240664005420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265240664005420 is an abundant number, since it is smaller than the sum of its proper divisors (291906860040980).

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

265240664005420 is a wasteful number, since it uses less digits than its factorization.

265240664005420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384038937 (or 3384038935 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 46.

The spelling of 265240664005420 in words is "two hundred sixty-five trillion, two hundred forty billion, six hundred sixty-four million, five thousand, four hundred twenty".