3666013605340 has 24 divisors (see below), whose sum is σ = 7730840416320. Its totient is φ = 1460269852608.

The previous prime is 3666013605323. The next prime is 3666013605349. The reversal of 3666013605340 is 435063106663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666013605349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383469447 + ... + 383479006.

It is an arithmetic number, because the mean of its divisors is an integer number (322118350680).

Almost surely, 2^{3666013605340} is an apocalyptic number.

It is an amenable number.

3666013605340 is an abundant number, since it is smaller than the sum of its proper divisors (4064826810980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3666013605340 is a wasteful number, since it uses less digits than its factorization.

3666013605340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766948701 (or 766948699 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 43.

The spelling of 3666013605340 in words is "three trillion, six hundred sixty-six billion, thirteen million, six hundred five thousand, three hundred forty".