1663599084 has 48 divisors (see below), whose sum is σ = 4442839296. Its totient is φ = 474609600.

The previous prime is 1663599071. The next prime is 1663599089. The reversal of 1663599084 is 4809953661.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1663599089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43714 + ... + 72374.

It is an arithmetic number, because the mean of its divisors is an integer number (92559152).

Almost surely, 2^1663599084 is an apocalyptic number.

1663599084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1663599084 is an abundant number, since it is smaller than the sum of its proper divisors (2779240212).

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

1663599084 is a wasteful number, since it uses less digits than its factorization.

1663599084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29366 (or 29364 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 1663599084 is about 40787.2416816828. The cubic root of 1663599084 is about 1184.9032504820.

The spelling of 1663599084 in words is "one billion, six hundred sixty-three million, five hundred ninety-nine thousand, eighty-four".