11665252353321 has 96 divisors (see below), whose sum is σ = 21294090155520. Its totient is φ = 6006023654400.

The previous prime is 11665252353319. The next prime is 11665252353323. The reversal of 11665252353321 is 12335325256611.

11665252353321 is a `hidden beast` number, since 1 + 1 + 6 + 6 + 52 + 523 + 53 + 3 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (11665252353319) and next prime (11665252353323).

It is not a de Polignac number, because 11665252353321 - 2¹ = 11665252353319 is a prime.

It is a super-2 number, since 2×11665252353321² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11665252353323) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1662570 + ... + 5108291.

It is an arithmetic number, because the mean of its divisors is an integer number (221813439120).

Almost surely, 2^{11665252353321} is an apocalyptic number.

It is an amenable number.

11665252353321 is a deficient number, since it is larger than the sum of its proper divisors (9628837802199).

11665252353321 is a wasteful number, since it uses less digits than its factorization.

11665252353321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770967 (or 6770964 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The spelling of 11665252353321 in words is "eleven trillion, six hundred sixty-five billion, two hundred fifty-two million, three hundred fifty-three thousand, three hundred twenty-one".