320240165251161 has 8 divisors (see below), whose sum is σ = 430246328887584. Its totient is φ = 211863722557760.

The previous prime is 320240165251091. The next prime is 320240165251187. The reversal of 320240165251161 is 161152561042023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320240165251161 - 2⁷ = 320240165251033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320240165256161) 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, 407430235296 + ... + 407430236081.

It is an arithmetic number, because the mean of its divisors is an integer number (53780791110948).

Almost surely, 2^{320240165251161} is an apocalyptic number.

It is an amenable number.

320240165251161 is a deficient number, since it is larger than the sum of its proper divisors (110006163636423).

320240165251161 is a wasteful number, since it uses less digits than its factorization.

320240165251161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814860471511.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 320240165251161 in words is "three hundred twenty trillion, two hundred forty billion, one hundred sixty-five million, two hundred fifty-one thousand, one hundred sixty-one".