1631316650 has 48 divisors (see below), whose sum is σ = 3093953760. Its totient is φ = 639816000.

The previous prime is 1631316641. The next prime is 1631316707. The reversal of 1631316650 is 566131361.

It is a super-2 number, since 2×1631316650² = 5322388025134445000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 538841 + ... + 541859.

It is an arithmetic number, because the mean of its divisors is an integer number (64457370).

Almost surely, 2^1631316650 is an apocalyptic number.

1631316650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1631316650 is a deficient number, since it is larger than the sum of its proper divisors (1462637110).

1631316650 is a wasteful number, since it uses less digits than its factorization.

1631316650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239 (or 3234 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 1631316650 is about 40389.5611513668. The cubic root of 1631316650 is about 1177.1887135942.

The spelling of 1631316650 in words is "one billion, six hundred thirty-one million, three hundred sixteen thousand, six hundred fifty".