7766688006066 has 16 divisors (see below), whose sum is σ = 16945501104288. Its totient is φ = 2353541820000.

The previous prime is 7766688006041. The next prime is 7766688006101. The reversal of 7766688006066 is 6606008866677.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 117677091001 = 7766688006066 / (7 + 7 + 6 + 6 + 6 + 8 + 8 + 0 + 0 + 6 + 0 + 6 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 7766688005988 and 7766688006006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58838545435 + ... + 58838545566.

It is an arithmetic number, because the mean of its divisors is an integer number (1059093819018).

Almost surely, 2^{7766688006066} is an apocalyptic number.

7766688006066 is an abundant number, since it is smaller than the sum of its proper divisors (9178813098222).

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

7766688006066 is a wasteful number, since it uses less digits than its factorization.

7766688006066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117677091017.

The product of its (nonzero) digits is 146313216, while the sum is 66.

The spelling of 7766688006066 in words is "seven trillion, seven hundred sixty-six billion, six hundred eighty-eight million, six thousand, sixty-six".