1660341440 has 56 divisors (see below), whose sum is σ = 3957614640. Its totient is φ = 663477248.

The previous prime is 1660341439. The next prime is 1660341451. The reversal of 1660341440 is 441430661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437471 + ... + 441249.

It is an arithmetic number, because the mean of its divisors is an integer number (70671690).

Almost surely, 2^1660341440 is an apocalyptic number.

1660341440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1660341440 is an abundant number, since it is smaller than the sum of its proper divisors (2297273200).

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

1660341440 is a wasteful number, since it uses less digits than its factorization.

1660341440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169 (or 5159 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1660341440 is about 40747.2875170851. The cubic root of 1660341440 is about 1184.1293229815.

The spelling of 1660341440 in words is "one billion, six hundred sixty million, three hundred forty-one thousand, four hundred forty".