104212771666 has 16 divisors (see below), whose sum is σ = 158036681880. Its totient is φ = 51535595520.

The previous prime is 104212771657. The next prime is 104212771717. The reversal of 104212771666 is 666177212401.

It can be written as a sum of positive squares in 4 ways, for example, as 97871994025 + 6340777641 = 312845^2 + 79629^2 .

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, 307695 + ... + 550546.

Almost surely, 2^104212771666 is an apocalyptic number.

104212771666 is a deficient number, since it is larger than the sum of its proper divisors (53823910214).

104212771666 is a wasteful number, since it uses less digits than its factorization.

104212771666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858909.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 104212771666 in words is "one hundred four billion, two hundred twelve million, seven hundred seventy-one thousand, six hundred sixty-six".