6666737340670 has 64 divisors (see below), whose sum is σ = 13153663353600. Its totient is φ = 2412696706560.

The previous prime is 6666737340667. The next prime is 6666737340821. The reversal of 6666737340670 is 760437376666.

It is a junction number, because it is equal to n+sod(n) for n = 6666737340599 and 6666737340608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22104646 + ... + 22404214.

It is an arithmetic number, because the mean of its divisors is an integer number (205525989900).

Almost surely, 2^{6666737340670} is an apocalyptic number.

6666737340670 is a deficient number, since it is larger than the sum of its proper divisors (6486926012930).

6666737340670 is a wasteful number, since it uses less digits than its factorization.

6666737340670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300553.

The product of its (nonzero) digits is 96018048, while the sum is 61.

The spelling of 6666737340670 in words is "six trillion, six hundred sixty-six billion, seven hundred thirty-seven million, three hundred forty thousand, six hundred seventy".