1665083913 has 8 divisors (see below), whose sum is σ = 2220405408. Its totient is φ = 1109909184.

The previous prime is 1665083897. The next prime is 1665083951. The reversal of 1665083913 is 3193805661.

It is a happy number.

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

It is not a de Polignac number, because 1665083913 - 2⁴ = 1665083897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1665083963) 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, 6720 + ... + 58097.

It is an arithmetic number, because the mean of its divisors is an integer number (277550676).

Almost surely, 2^1665083913 is an apocalyptic number.

It is an amenable number.

1665083913 is a deficient number, since it is larger than the sum of its proper divisors (555321495).

1665083913 is an equidigital number, since it uses as much as digits as its factorization.

1665083913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73383.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1665083913 is about 40805.4397476611. The cubic root of 1665083913 is about 1185.2556702339.

The spelling of 1665083913 in words is "one billion, six hundred sixty-five million, eighty-three thousand, nine hundred thirteen".