1331732160 has 336 divisors, whose sum is σ = 5051584512. Its totient is φ = 319334400.

The previous prime is 1331732147. The next prime is 1331732203. The reversal of 1331732160 is 612371331.

1331732160 is a `hidden beast` number, since 1 + 331 + 7 + 321 + 6 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4023195 + ... + 4023525.

Almost surely, 2^1331732160 is an apocalyptic number.

1331732160 is a gapful number since it is divisible by the number (10) 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 1331732160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2525792256).

1331732160 is an abundant number, since it is smaller than the sum of its proper divisors (3719852352).

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

1331732160 is a wasteful number, since it uses less digits than its factorization.

1331732160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1331732160 is about 36492.9056119131. The cubic root of 1331732160 is about 1100.2016599977.

The spelling of 1331732160 in words is "one billion, three hundred thirty-one million, seven hundred thirty-two thousand, one hundred sixty".