265553212113 has 24 divisors (see below), whose sum is σ = 457433278848. Its totient is φ = 145147096512.

The previous prime is 265553212103. The next prime is 265553212123. The reversal of 265553212113 is 311212355562.

265553212113 is a `hidden beast` number, since 2 + 6 + 5 + 5 + 532 + 1 + 2 + 113 = 666.

It is an interprime number because it is at equal distance from previous prime (265553212103) and next prime (265553212123).

It is not a de Polignac number, because 265553212113 - 2⁶ = 265553212049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265553212103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91631820 + ... + 91634717.

It is an arithmetic number, because the mean of its divisors is an integer number (19059719952).

Almost surely, 2^265553212113 is an apocalyptic number.

265553212113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

265553212113 is a deficient number, since it is larger than the sum of its proper divisors (191880066735).

265553212113 is a wasteful number, since it uses less digits than its factorization.

265553212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183266573 (or 183266570 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

Adding to 265553212113 its reverse (311212355562), we get a palindrome (576765567675).

The spelling of 265553212113 in words is "two hundred sixty-five billion, five hundred fifty-three million, two hundred twelve thousand, one hundred thirteen".