1663263360 has 192 divisors, whose sum is σ = 6265827360. Its totient is φ = 403200000.

The previous prime is 1663263341. The next prime is 1663263383. The reversal of 1663263360 is 633623661.

It is a happy number.

1663263360 is a `hidden beast` number, since 16 + 6 + 3 + 2 + 633 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 50235 + ... + 76485.

Almost surely, 2^1663263360 is an apocalyptic number.

1663263360 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 1663263360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3132913680).

1663263360 is an abundant number, since it is smaller than the sum of its proper divisors (4602564000).

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

1663263360 is a wasteful number, since it uses less digits than its factorization.

1663263360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26287 (or 26272 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The square root of 1663263360 is about 40783.1259223714. The cubic root of 1663263360 is about 1184.8235383236.

The spelling of 1663263360 in words is "one billion, six hundred sixty-three million, two hundred sixty-three thousand, three hundred sixty".