11666735417 has 2 divisors, whose sum is σ = 11666735418. Its totient is φ = 11666735416.

The previous prime is 11666735383. The next prime is 11666735449. The reversal of 11666735417 is 71453766611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7343804416 + 4322931001 = 85696^2 + 65749^2 .

It is a cyclic number.

It is not a de Polignac number, because 11666735417 - 2¹⁴ = 11666719033 is a prime.

It is a super-2 number, since 2×11666735417² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11666735617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833367708 + 5833367709.

It is an arithmetic number, because the mean of its divisors is an integer number (5833367709).

Almost surely, 2^11666735417 is an apocalyptic number.

It is an amenable number.

11666735417 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666735417 is an equidigital number, since it uses as much as digits as its factorization.

11666735417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The spelling of 11666735417 in words is "eleven billion, six hundred sixty-six million, seven hundred thirty-five thousand, four hundred seventeen".