1663306290 has 48 divisors (see below), whose sum is σ = 4379356800. Its totient is φ = 437931936.

The previous prime is 1663306259. The next prime is 1663306297. The reversal of 1663306290 is 926033661.

1663306290 is a `hidden beast` number, since 1 + 6 + 63 + 306 + 290 = 666.

It is not an unprimeable number, because it can be changed into a prime (1663306297) by changing a digit.

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, 109860 + ... + 124079.

It is an arithmetic number, because the mean of its divisors is an integer number (91236600).

Almost surely, 2^1663306290 is an apocalyptic number.

1663306290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1663306290 is an abundant number, since it is smaller than the sum of its proper divisors (2716050510).

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

1663306290 is a wasteful number, since it uses less digits than its factorization.

1663306290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234031 (or 234028 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 1663306290 is about 40783.6522395923. The cubic root of 1663306290 is about 1184.8337319462.

The spelling of 1663306290 in words is "one billion, six hundred sixty-three million, three hundred six thousand, two hundred ninety".