3666836686850 has 12 divisors (see below), whose sum is σ = 6820316237634. Its totient is φ = 1466734674720.

The previous prime is 3666836686823. The next prime is 3666836686873. The reversal of 3666836686850 is 586866386663.

It can be written as a sum of positive squares in 3 ways, for example, as 2744558802241 + 922277884609 = 1656671^2 + 960353^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36668366819 + ... + 36668366918.

Almost surely, 2^{3666836686850} is an apocalyptic number.

3666836686850 is a deficient number, since it is larger than the sum of its proper divisors (3153479550784).

3666836686850 is a wasteful number, since it uses less digits than its factorization.

3666836686850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73336733749 (or 73336733744 counting only the distinct ones).

The product of its (nonzero) digits is 1074954240, while the sum is 71.

The spelling of 3666836686850 in words is "three trillion, six hundred sixty-six billion, eight hundred thirty-six million, six hundred eighty-six thousand, eight hundred fifty".