665670702 has 16 divisors (see below), whose sum is σ = 1362303360. Its totient is φ = 216729912.

The previous prime is 665670701. The next prime is 665670713. The reversal of 665670702 is 207076566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665670701) 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, 1289802 + ... + 1290317.

It is an arithmetic number, because the mean of its divisors is an integer number (85143960).

Almost surely, 2^665670702 is an apocalyptic number.

665670702 is an abundant number, since it is smaller than the sum of its proper divisors (696632658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665670702 is a wasteful number, since it uses less digits than its factorization.

665670702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580167.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 665670702 is about 25800.5949931392. The cubic root of 665670702 is about 873.1452202821.

The spelling of 665670702 in words is "six hundred sixty-five million, six hundred seventy thousand, seven hundred two".