1663093760 has 88 divisors (see below), whose sum is σ = 4097766480. Its totient is φ = 647184384.

The previous prime is 1663093753. The next prime is 1663093777. The reversal of 1663093760 is 673903661.

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, 185051 + ... + 193829.

Almost surely, 2^1663093760 is an apocalyptic number.

1663093760 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 1663093760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2048883240).

1663093760 is an abundant number, since it is smaller than the sum of its proper divisors (2434672720).

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

1663093760 is an equidigital number, since it uses as much as digits as its factorization.

1663093760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8841 (or 8823 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 1663093760 is about 40781.0465780367. The cubic root of 1663093760 is about 1184.7832655066.

The spelling of 1663093760 in words is "one billion, six hundred sixty-three million, ninety-three thousand, seven hundred sixty".