166881862 has 16 divisors (see below), whose sum is σ = 286274592. Its totient is φ = 71472960.

The previous prime is 166881851. The next prime is 166881881. The reversal of 166881862 is 268188661.

166881862 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, 24912 + ... + 30892.

It is an arithmetic number, because the mean of its divisors is an integer number (17892162).

Almost surely, 2^166881862 is an apocalyptic number.

166881862 is a deficient number, since it is larger than the sum of its proper divisors (119392730).

166881862 is a wasteful number, since it uses less digits than its factorization.

166881862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7983.

The product of its digits is 221184, while the sum is 46.

The square root of 166881862 is about 12918.2762782037. The cubic root of 166881862 is about 550.5579593945.

The spelling of 166881862 in words is "one hundred sixty-six million, eight hundred eighty-one thousand, eight hundred sixty-two".