265553212136 has 16 divisors (see below), whose sum is σ = 519560632800. Its totient is φ = 127003710064.

The previous prime is 265553212129. The next prime is 265553212139. The reversal of 265553212136 is 631212355562.

It is a junction number, because it is equal to n+sod(n) for n = 265553212093 and 265553212102.

It is not an unprimeable number, because it can be changed into a prime (265553212139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721611806 + ... + 721612173.

It is an arithmetic number, because the mean of its divisors is an integer number (32472539550).

Almost surely, 2^265553212136 is an apocalyptic number.

It is an amenable number.

265553212136 is a deficient number, since it is larger than the sum of its proper divisors (254007420664).

265553212136 is a wasteful number, since it uses less digits than its factorization.

265553212136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443224008 (or 1443224004 counting only the distinct ones).

The product of its digits is 324000, while the sum is 41.

Adding to 265553212136 its reverse (631212355562), we get a palindrome (896765567698).

The spelling of 265553212136 in words is "two hundred sixty-five billion, five hundred fifty-three million, two hundred twelve thousand, one hundred thirty-six".