320068536516 has 27 divisors (see below), whose sum is σ = 809070714543. Its totient is φ = 106688380680.

The previous prime is 320068536497. The next prime is 320068536517. The reversal of 320068536516 is 615635860023.

The square root of 320068536516 is 565746.

It is a perfect power (a square), and thus also a powerful number.

320068536516 is a `hidden beast` number, since 3 + 2 + 0 + 0 + 68 + 536 + 51 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (320068536517) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3347331 + ... + 3441621.

Almost surely, 2^320068536516 is an apocalyptic number.

320068536516 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

320068536516 is the 565746-th square number.

It is an amenable number.

320068536516 is an abundant number, since it is smaller than the sum of its proper divisors (489002178027).

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

320068536516 is an frugal number, since it uses more digits than its factorization.

320068536516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188592 (or 94296 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 320068536516 in words is "three hundred twenty billion, sixty-eight million, five hundred thirty-six thousand, five hundred sixteen".