3666121435323 has 12 divisors (see below), whose sum is σ = 5325092589960. Its totient is φ = 2430426872256.

The previous prime is 3666121435321. The next prime is 3666121435337. The reversal of 3666121435323 is 3235341216663.

It is not a de Polignac number, because 3666121435323 - 2¹ = 3666121435321 is a prime.

It is a super-2 number, since 2×3666121435323² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3666121435321) 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, 1137838686 + ... + 1137841907.

It is an arithmetic number, because the mean of its divisors is an integer number (443757715830).

Almost surely, 2^{3666121435323} is an apocalyptic number.

3666121435323 is a deficient number, since it is larger than the sum of its proper divisors (1658971154637).

3666121435323 is a wasteful number, since it uses less digits than its factorization.

3666121435323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275680778 (or 2275680775 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 45.

The spelling of 3666121435323 in words is "three trillion, six hundred sixty-six billion, one hundred twenty-one million, four hundred thirty-five thousand, three hundred twenty-three".