1831661104 has 160 divisors (see below), whose sum is σ = 4665812480. Its totient is φ = 676325376.

The previous prime is 1831661063. The next prime is 1831661129. The reversal of 1831661104 is 4011661381.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2019019 + ... + 2019925.

It is an arithmetic number, because the mean of its divisors is an integer number (29161328).

Almost surely, 2^1831661104 is an apocalyptic number.

1831661104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1831661104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2332906240).

1831661104 is an abundant number, since it is smaller than the sum of its proper divisors (2834151376).

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

1831661104 is a wasteful number, since it uses less digits than its factorization.

1831661104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1021 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1831661104 is about 42797.9100424308. The cubic root of 1831661104 is about 1223.5311794752.

The spelling of 1831661104 in words is "one billion, eight hundred thirty-one million, six hundred sixty-one thousand, one hundred four".