6670333393940 has 24 divisors (see below), whose sum is σ = 14029553040552. Its totient is φ = 2663970897920.

The previous prime is 6670333393921. The next prime is 6670333393943. The reversal of 6670333393940 is 493933330766.

It can be written as a sum of positive squares in 4 ways, for example, as 3698336687236 + 2971996706704 = 1923106^2 + 1723948^2 .

It is a super-2 number, since 2×6670333393940² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6670333393943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260140589 + ... + 260166228.

It is an arithmetic number, because the mean of its divisors is an integer number (584564710023).

Almost surely, 2^{6670333393940} is an apocalyptic number.

It is an amenable number.

6670333393940 is an abundant number, since it is smaller than the sum of its proper divisors (7359219646612).

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

6670333393940 is a wasteful number, since it uses less digits than its factorization.

6670333393940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520307467 (or 520307465 counting only the distinct ones).

The product of its (nonzero) digits is 19840464, while the sum is 56.

The spelling of 6670333393940 in words is "six trillion, six hundred seventy billion, three hundred thirty-three million, three hundred ninety-three thousand, nine hundred forty".