320530166701 has 4 divisors (see below), whose sum is σ = 331582931100. Its totient is φ = 309477402304.

The previous prime is 320530166647. The next prime is 320530166731. The reversal of 320530166701 is 107661035023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 107661035023 = 41 ⋅2625878903.

It can be written as a sum of positive squares in 2 ways, for example, as 217691297476 + 102838869225 = 466574^2 + 320685^2 .

It is a cyclic number.

It is not a de Polignac number, because 320530166701 - 2¹⁵ = 320530133933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320530166731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5526382156 + ... + 5526382213.

It is an arithmetic number, because the mean of its divisors is an integer number (82895732775).

Almost surely, 2^320530166701 is an apocalyptic number.

It is an amenable number.

320530166701 is a deficient number, since it is larger than the sum of its proper divisors (11052764399).

320530166701 is a wasteful number, since it uses less digits than its factorization.

320530166701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11052764398.

The product of its (nonzero) digits is 22680, while the sum is 34.

The spelling of 320530166701 in words is "three hundred twenty billion, five hundred thirty million, one hundred sixty-six thousand, seven hundred one".