1660341437 has 8 divisors (see below), whose sum is σ = 1723987800. Its totient is φ = 1597121344.

The previous prime is 1660341433. The next prime is 1660341439. The reversal of 1660341437 is 7341430661.

It can be written as a sum of positive squares in 4 ways, for example, as 147598201 + 1512743236 = 12149^2 + 38894^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1660341437 - 2² = 1660341433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1660341397 and 1660341406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660341433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98618 + ... + 114219.

It is an arithmetic number, because the mean of its divisors is an integer number (215498475).

Almost surely, 2^1660341437 is an apocalyptic number.

It is an amenable number.

1660341437 is a deficient number, since it is larger than the sum of its proper divisors (63646363).

1660341437 is a wasteful number, since it uses less digits than its factorization.

1660341437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213135.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 1660341437 is about 40747.2874802728. The cubic root of 1660341437 is about 1184.1293222683.

The spelling of 1660341437 in words is "one billion, six hundred sixty million, three hundred forty-one thousand, four hundred thirty-seven".