3666670737408 has 240 divisors, whose sum is σ = 12516655591440. Its totient is φ = 1047619878912.

The previous prime is 3666670737407. The next prime is 3666670737413. The reversal of 3666670737408 is 8047370766663.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666670737407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 417591 + ... + 2740022.

It is an arithmetic number, because the mean of its divisors is an integer number (52152731631).

Almost surely, 2^{3666670737408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3666670737408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6258327795720).

3666670737408 is an abundant number, since it is smaller than the sum of its proper divisors (8849984854032).

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

3666670737408 is an equidigital number, since it uses as much as digits as its factorization.

3666670737408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157654 (or 3157625 counting only the distinct ones).

The product of its (nonzero) digits is 128024064, while the sum is 63.

The spelling of 3666670737408 in words is "three trillion, six hundred sixty-six billion, six hundred seventy million, seven hundred thirty-seven thousand, four hundred eight".