1662108984 has 80 divisors (see below), whose sum is σ = 4857898320. Its totient is φ = 529943040.

The previous prime is 1662108967. The next prime is 1662108997. The reversal of 1662108984 is 4898012661.

1662108984 is a `hidden beast` number, since 16 + 621 + 0 + 8 + 9 + 8 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 40857 + ... + 70664.

It is an arithmetic number, because the mean of its divisors is an integer number (60723729).

Almost surely, 2^1662108984 is an apocalyptic number.

It is an amenable number.

1662108984 is an abundant number, since it is smaller than the sum of its proper divisors (3195789336).

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

1662108984 is a wasteful number, since it uses less digits than its factorization.

1662108984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111562 (or 111549 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1662108984 is about 40768.9708479378. The cubic root of 1662108984 is about 1184.5493687937.

The spelling of 1662108984 in words is "one billion, six hundred sixty-two million, one hundred eight thousand, nine hundred eighty-four".