3989654851166 has 16 divisors (see below), whose sum is σ = 6177579194880. Its totient is φ = 1930462809240.

The previous prime is 3989654851157. The next prime is 3989654851219. The reversal of 3989654851166 is 6611584569893.

It is a super-2 number, since 2×3989654851166² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3989654851166.

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, 13697945 + ... + 13986171.

It is an arithmetic number, because the mean of its divisors is an integer number (386098699680).

Almost surely, 2^{3989654851166} is an apocalyptic number.

3989654851166 is a deficient number, since it is larger than the sum of its proper divisors (2187924343714).

3989654851166 is a wasteful number, since it uses less digits than its factorization.

3989654851166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511519.

The product of its digits is 335923200, while the sum is 71.

The spelling of 3989654851166 in words is "three trillion, nine hundred eighty-nine billion, six hundred fifty-four million, eight hundred fifty-one thousand, one hundred sixty-six".