1908164466 has 60 divisors (see below), whose sum is σ = 4629968442. Its totient is φ = 587119104.

The previous prime is 1908164441. The next prime is 1908164519. The reversal of 1908164466 is 6644618091.

1908164466 is a `hidden beast` number, since 190 + 8 + 16 + 446 + 6 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1626428241 + 281736225 = 40329^2 + 16785^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7471 + ... + 62226.

Almost surely, 2^1908164466 is an apocalyptic number.

1908164466 is an abundant number, since it is smaller than the sum of its proper divisors (2721803976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1908164466 is a wasteful number, since it uses less digits than its factorization.

1908164466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69737 (or 69715 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1908164466 is about 43682.5418903250. The cubic root of 1908164466 is about 1240.3338647482. Note that the first 3 decimals are identical.

The spelling of 1908164466 in words is "one billion, nine hundred eight million, one hundred sixty-four thousand, four hundred sixty-six".