1660434411 has 8 divisors (see below), whose sum is σ = 2290254480. Its totient is φ = 1068785312.

The previous prime is 1660434409. The next prime is 1660434439. The reversal of 1660434411 is 1144340661.

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 1660434411 - 2¹ = 1660434409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1660434911) 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, 9542640 + ... + 9542813.

It is an arithmetic number, because the mean of its divisors is an integer number (286281810).

Almost surely, 2^1660434411 is an apocalyptic number.

1660434411 is a deficient number, since it is larger than the sum of its proper divisors (629820069).

1660434411 is a wasteful number, since it uses less digits than its factorization.

1660434411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19085485.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1660434411 is about 40748.4283255195. The cubic root of 1660434411 is about 1184.1514243858.

It can be divided in two parts, 16604 and 34411, that added together give a palindrome (51015).

The spelling of 1660434411 in words is "one billion, six hundred sixty million, four hundred thirty-four thousand, four hundred eleven".