160891403666 has 24 divisors (see below), whose sum is σ = 295514826480. Its totient is φ = 65324328552.

The previous prime is 160891403653. The next prime is 160891403671. The reversal of 160891403666 is 666304198061.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43202060 + ... + 43205783.

It is an arithmetic number, because the mean of its divisors is an integer number (12313117770).

Almost surely, 2^160891403666 is an apocalyptic number.

160891403666 is a deficient number, since it is larger than the sum of its proper divisors (134623422814).

160891403666 is a wasteful number, since it uses less digits than its factorization.

160891403666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86407878 (or 86407871 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 160891403666 in words is "one hundred sixty billion, eight hundred ninety-one million, four hundred three thousand, six hundred sixty-six".