11666735433 has 12 divisors (see below), whose sum is σ = 17738896240. Its totient is φ = 7368464376.

The previous prime is 11666735417. The next prime is 11666735449. The reversal of 11666735433 is 33453766611.

It is an interprime number because it is at equal distance from previous prime (11666735417) and next prime (11666735449).

It is not a de Polignac number, because 11666735433 - 2⁴ = 11666735417 is a prime.

It is a super-2 number, since 2×11666735433² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11666735453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34113091 + ... + 34113432.

Almost surely, 2^11666735433 is an apocalyptic number.

It is an amenable number.

11666735433 is a deficient number, since it is larger than the sum of its proper divisors (6072160807).

11666735433 is a wasteful number, since it uses less digits than its factorization.

11666735433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68226548 (or 68226545 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

It can be divided in two parts, 116667 and 35433, that added together give a square (152100 = 390²).

The spelling of 11666735433 in words is "eleven billion, six hundred sixty-six million, seven hundred thirty-five thousand, four hundred thirty-three".