1663260160 has 80 divisors (see below), whose sum is σ = 4053682512. Its totient is φ = 654336000.

The previous prime is 1663260121. The next prime is 1663260173. The reversal of 1663260160 is 610623661.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150835 + ... + 161485.

Almost surely, 2^1663260160 is an apocalyptic number.

1663260160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1663260160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2026841256).

1663260160 is an abundant number, since it is smaller than the sum of its proper divisors (2390422352).

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

1663260160 is an equidigital number, since it uses as much as digits as its factorization.

1663260160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10735 (or 10719 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1663260160 is about 40783.0866904407. The cubic root of 1663260160 is about 1184.8227784845.

The spelling of 1663260160 in words is "one billion, six hundred sixty-three million, two hundred sixty thousand, one hundred sixty".