320616495 has 32 divisors (see below), whose sum is σ = 572264640. Its totient is φ = 170311680.

The previous prime is 320616487. The next prime is 320616497. The reversal of 320616495 is 594616023.

It is a happy number.

320616495 is a `hidden beast` number, since 3 + 2 + 0 + 6 + 1 + 649 + 5 = 666.

It is not a de Polignac number, because 320616495 - 2³ = 320616487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320616497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30075 + ... + 39315.

It is an arithmetic number, because the mean of its divisors is an integer number (17883270).

Almost surely, 2^320616495 is an apocalyptic number.

320616495 is a deficient number, since it is larger than the sum of its proper divisors (251648145).

320616495 is a wasteful number, since it uses less digits than its factorization.

320616495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512 (or 9506 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 320616495 is about 17905.7670877290. The cubic root of 320616495 is about 684.4293434047.

It can be divided in two parts, 3206 and 16495, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 320616495 in words is "three hundred twenty million, six hundred sixteen thousand, four hundred ninety-five".