7666767104381 has 16 divisors (see below), whose sum is σ = 9720576391680. Its totient is φ = 5872848229680.

The previous prime is 7666767104377. The next prime is 7666767104411. The reversal of 7666767104381 is 1834017676667.

It is a cyclic number.

It is not a de Polignac number, because 7666767104381 - 2² = 7666767104377 is a prime.

It is a super-2 number, since 2×7666767104381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666767104371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 843795491 + ... + 843804576.

It is an arithmetic number, because the mean of its divisors is an integer number (607536024480).

Almost surely, 2^{7666767104381} is an apocalyptic number.

It is an amenable number.

7666767104381 is a deficient number, since it is larger than the sum of its proper divisors (2053809287299).

7666767104381 is a wasteful number, since it uses less digits than its factorization.

7666767104381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687600144.

The product of its (nonzero) digits is 42674688, while the sum is 62.

The spelling of 7666767104381 in words is "seven trillion, six hundred sixty-six billion, seven hundred sixty-seven million, one hundred four thousand, three hundred eighty-one".