1660371441440 has 48 divisors (see below), whose sum is σ = 4153370333112. Its totient is φ = 625081012224.

The previous prime is 1660371441431. The next prime is 1660371441493. The reversal of 1660371441440 is 441441730661.

It can be written as a sum of positive squares in 4 ways, for example, as 1654094365456 + 6277075984 = 1286116^2 + 79228^2 .

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, 305212619 + ... + 305218058.

Almost surely, 2^{1660371441440} is an apocalyptic number.

1660371441440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1660371441440 is an abundant number, since it is smaller than the sum of its proper divisors (2492998891672).

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

1660371441440 is a wasteful number, since it uses less digits than its factorization.

1660371441440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610430709 (or 610430701 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 1660371441440 in words is "one trillion, six hundred sixty billion, three hundred seventy-one million, four hundred forty-one thousand, four hundred forty".