3666742476663 has 64 divisors (see below), whose sum is σ = 5841862041600. Its totient is φ = 2001447100800.

The previous prime is 3666742476611. The next prime is 3666742476667.

It is a happy number.

3666742476663 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3666742476663 - 2⁹ = 3666742476151 is a prime.

It is a super-2 number, since 2×3666742476663² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3666742476594 and 3666742476603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666742476667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 65898268 + ... + 65953886.

It is an arithmetic number, because the mean of its divisors is an integer number (91279094400).

Almost surely, 2^{3666742476663} is an apocalyptic number.

3666742476663 is a deficient number, since it is larger than the sum of its proper divisors (2175119564937).

3666742476663 is a wasteful number, since it uses less digits than its factorization.

3666742476663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56812.

The product of its digits is 658409472, while the sum is 66.

The spelling of 3666742476663 in words is "three trillion, six hundred sixty-six billion, seven hundred forty-two million, four hundred seventy-six thousand, six hundred sixty-three".