265642652400321 has 8 divisors (see below), whose sum is σ = 404788803657664. Its totient is φ = 151795801371600.

The previous prime is 265642652400259. The next prime is 265642652400341. The reversal of 265642652400321 is 123004256246562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 265642652400321 - 2¹⁴ = 265642652383937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265642652400341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6324825057130 + ... + 6324825057171.

It is an arithmetic number, because the mean of its divisors is an integer number (50598600457208).

Almost surely, 2^{265642652400321} is an apocalyptic number.

265642652400321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

265642652400321 is a deficient number, since it is larger than the sum of its proper divisors (139146151257343).

265642652400321 is a wasteful number, since it uses less digits than its factorization.

265642652400321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12649650114311.

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 265642652400321 in words is "two hundred sixty-five trillion, six hundred forty-two billion, six hundred fifty-two million, four hundred thousand, three hundred twenty-one".