1665587341 has 8 divisors (see below), whose sum is σ = 1817301024. Its totient is φ = 1513923120.

The previous prime is 1665587309. The next prime is 1665587351. The reversal of 1665587341 is 1437855661.

It is a happy number.

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 1665587341 - 2⁵ = 1665587309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1665587291 and 1665587300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665587351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116406 + ... + 129928.

It is an arithmetic number, because the mean of its divisors is an integer number (227162628).

Almost surely, 2^1665587341 is an apocalyptic number.

1665587341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1665587341 is a deficient number, since it is larger than the sum of its proper divisors (151713683).

1665587341 is a wasteful number, since it uses less digits than its factorization.

1665587341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24731.

The product of its digits is 604800, while the sum is 46.

The square root of 1665587341 is about 40811.6079198063. The cubic root of 1665587341 is about 1185.3751098132.

The spelling of 1665587341 in words is "one billion, six hundred sixty-five million, five hundred eighty-seven thousand, three hundred forty-one".