166271084788 has 12 divisors (see below), whose sum is σ = 291428341092. Its totient is φ = 83005844480.

The previous prime is 166271084767. The next prime is 166271084857. The reversal of 166271084788 is 887480172661.

It can be written as a sum of positive squares in 2 ways, for example, as 103110347664 + 63160737124 = 321108^2 + 251318^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32421595 + ... + 32426722.

It is an arithmetic number, because the mean of its divisors is an integer number (24285695091).

Almost surely, 2^166271084788 is an apocalyptic number.

It is an amenable number.

166271084788 is a deficient number, since it is larger than the sum of its proper divisors (125157256304).

166271084788 is a wasteful number, since it uses less digits than its factorization.

166271084788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64848962 (or 64848960 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 58.

The spelling of 166271084788 in words is "one hundred sixty-six billion, two hundred seventy-one million, eighty-four thousand, seven hundred eighty-eight".