665670083 has 8 divisors (see below), whose sum is σ = 717351600. Its totient is φ = 614056608.

The previous prime is 665670079. The next prime is 665670091. The reversal of 665670083 is 380076566.

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 665670083 - 2² = 665670079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 665670083.

It is not an unprimeable number, because it can be changed into a prime (665673083) 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, 4313 + ... + 36741.

It is an arithmetic number, because the mean of its divisors is an integer number (89668950).

Almost surely, 2^665670083 is an apocalyptic number.

665670083 is a deficient number, since it is larger than the sum of its proper divisors (51681517).

665670083 is a wasteful number, since it uses less digits than its factorization.

665670083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34021.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 665670083 is about 25800.5829972890. The cubic root of 665670083 is about 873.1449496392.

The spelling of 665670083 in words is "six hundred sixty-five million, six hundred seventy thousand, eighty-three".