1663632140 has 12 divisors (see below), whose sum is σ = 3493627536. Its totient is φ = 665452848.

The previous prime is 1663632107. The next prime is 1663632151. The reversal of 1663632140 is 412363661.

It is a junction number, because it is equal to n+sod(n) for n = 1663632097 and 1663632106.

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 3 ways as a sum of consecutive naturals, for example, 41590784 + ... + 41590823.

It is an arithmetic number, because the mean of its divisors is an integer number (291135628).

Almost surely, 2^1663632140 is an apocalyptic number.

1663632140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1663632140 is an abundant number, since it is smaller than the sum of its proper divisors (1829995396).

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

1663632140 is a wasteful number, since it uses less digits than its factorization.

1663632140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83181616 (or 83181614 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1663632140 is about 40787.6469044244. The cubic root of 1663632140 is about 1184.9110985072.

The spelling of 1663632140 in words is "one billion, six hundred sixty-three million, six hundred thirty-two thousand, one hundred forty".