265134450121356 has 48 divisors (see below), whose sum is σ = 644583877862400. Its totient is φ = 84716738202432.

The previous prime is 265134450121301. The next prime is 265134450121403. The reversal of 265134450121356 is 653121054431562.

It is a happy number.

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, 2740529340 + ... + 2740626083.

It is an arithmetic number, because the mean of its divisors is an integer number (13428830788800).

Almost surely, 2^{265134450121356} is an apocalyptic number.

It is an amenable number.

265134450121356 is an abundant number, since it is smaller than the sum of its proper divisors (379449427741044).

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

265134450121356 is a wasteful number, since it uses less digits than its factorization.

265134450121356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5481155598 (or 5481155596 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 265134450121356 in words is "two hundred sixty-five trillion, one hundred thirty-four billion, four hundred fifty million, one hundred twenty-one thousand, three hundred fifty-six".