1631641120 has 24 divisors (see below), whose sum is σ = 3854752524. Its totient is φ = 652656384.

The previous prime is 1631641111. The next prime is 1631641127. The reversal of 1631641120 is 211461361.

It can be written as a sum of positive squares in 2 ways, for example, as 1391886864 + 239754256 = 37308^2 + 15484^2 .

It is not an unprimeable number, because it can be changed into a prime (1631641127) 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 3 ways as a sum of consecutive naturals, for example, 5098719 + ... + 5099038.

Almost surely, 2^1631641120 is an apocalyptic number.

1631641120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1631641120 is an abundant number, since it is smaller than the sum of its proper divisors (2223111404).

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

1631641120 is a wasteful number, since it uses less digits than its factorization.

1631641120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10197772 (or 10197764 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1631641120 is about 40393.5777073534. The cubic root of 1631641120 is about 1177.2667563009.

The spelling of 1631641120 in words is "one billion, six hundred thirty-one million, six hundred forty-one thousand, one hundred twenty".