2321542565161 has 32 divisors (see below), whose sum is σ = 2442378521088. Its totient is φ = 2204066580480.

The previous prime is 2321542565093. The next prime is 2321542565197. The reversal of 2321542565161 is 1615652451232.

It is not a de Polignac number, because 2321542565161 - 2¹³ = 2321542556969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321542565261) 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, 1477747506 + ... + 1477749076.

It is an arithmetic number, because the mean of its divisors is an integer number (76324328784).

Almost surely, 2^{2321542565161} is an apocalyptic number.

It is an amenable number.

2321542565161 is a deficient number, since it is larger than the sum of its proper divisors (120835955927).

2321542565161 is a wasteful number, since it uses less digits than its factorization.

2321542565161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681.

The product of its digits is 432000, while the sum is 43.

The spelling of 2321542565161 in words is "two trillion, three hundred twenty-one billion, five hundred forty-two million, five hundred sixty-five thousand, one hundred sixty-one".