1663704461580 has 48 divisors (see below), whose sum is σ = 5323854278400. Its totient is φ = 380275305408.

The previous prime is 1663704461569. The next prime is 1663704461597. The reversal of 1663704461580 is 851644073661.

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 15 ways as a sum of consecutive naturals, for example, 1980600130 + ... + 1980600969.

It is an arithmetic number, because the mean of its divisors is an integer number (110913630800).

Almost surely, 2^{1663704461580} is an apocalyptic number.

1663704461580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1663704461580 is an abundant number, since it is smaller than the sum of its proper divisors (3660149816820).

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

1663704461580 is a wasteful number, since it uses less digits than its factorization.

1663704461580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961201118 (or 3961201116 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 1663704461580 in words is "one trillion, six hundred sixty-three billion, seven hundred four million, four hundred sixty-one thousand, five hundred eighty".