320661662 has 4 divisors (see below), whose sum is σ = 480992496. Its totient is φ = 160330830.

The previous prime is 320661661. The next prime is 320661709. The reversal of 320661662 is 266166023.

320661662 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320661661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80165414 + ... + 80165417.

It is an arithmetic number, because the mean of its divisors is an integer number (120248124).

Almost surely, 2^320661662 is an apocalyptic number.

320661662 is a deficient number, since it is larger than the sum of its proper divisors (160330834).

320661662 is a wasteful number, since it uses less digits than its factorization.

320661662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160330833.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 320661662 is about 17907.0282850059. The cubic root of 320661662 is about 684.4614816645.

The spelling of 320661662 in words is "three hundred twenty million, six hundred sixty-one thousand, six hundred sixty-two".