265305200450136 has 128 divisors (see below), whose sum is σ = 837392709427200. Its totient is φ = 68038157566080.

The previous prime is 265305200450113. The next prime is 265305200450153. The reversal of 265305200450136 is 631054002503562.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 908483250 + ... + 908775233.

It is an arithmetic number, because the mean of its divisors is an integer number (6542130542400).

Almost surely, 2^{265305200450136} is an apocalyptic number.

It is an amenable number.

265305200450136 is an abundant number, since it is smaller than the sum of its proper divisors (572087508977064).

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

265305200450136 is a wasteful number, since it uses less digits than its factorization.

265305200450136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817258589 (or 1817258585 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

Adding to 265305200450136 its reverse (631054002503562), we get a palindrome (896359202953698).

The spelling of 265305200450136 in words is "two hundred sixty-five trillion, three hundred five billion, two hundred million, four hundred fifty thousand, one hundred thirty-six".