77666466662 has 16 divisors (see below), whose sum is σ = 123533264592. Its totient is φ = 36495402240.

The previous prime is 77666466659. The next prime is 77666466727. The reversal of 77666466662 is 26666466677.

It is a junction number, because it is equal to n+sod(n) for n = 77666466595 and 77666466604.

It is a congruent number.

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, 1649039 + ... + 1695482.

It is an arithmetic number, because the mean of its divisors is an integer number (7720829037).

Almost surely, 2^77666466662 is an apocalyptic number.

77666466662 is a deficient number, since it is larger than the sum of its proper divisors (45866797930).

77666466662 is a wasteful number, since it uses less digits than its factorization.

77666466662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345223.

The product of its digits is 109734912, while the sum is 62.

The spelling of 77666466662 in words is "seventy-seven billion, six hundred sixty-six million, four hundred sixty-six thousand, six hundred sixty-two".