6666667040774 has 16 divisors (see below), whose sum is σ = 10916755094112. Its totient is φ = 3034773615168.

The previous prime is 6666667040773. The next prime is 6666667040809. The reversal of 6666667040774 is 4770407666666.

It is a self number, because there is not a number n which added to its sum of digits gives 6666667040774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666667040773) 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, 1756232834 + ... + 1756236629.

It is an arithmetic number, because the mean of its divisors is an integer number (682297193382).

Almost surely, 2^{6666667040774} is an apocalyptic number.

6666667040774 is a deficient number, since it is larger than the sum of its proper divisors (4250088053338).

6666667040774 is a wasteful number, since it uses less digits than its factorization.

6666667040774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512469551.

The product of its (nonzero) digits is 256048128, while the sum is 65.

The spelling of 6666667040774 in words is "six trillion, six hundred sixty-six billion, six hundred sixty-seven million, forty thousand, seven hundred seventy-four".