2064437161 has 4 divisors (see below), whose sum is σ = 2065794192. Its totient is φ = 2063080132.

The previous prime is 2064437159. The next prime is 2064437189. The reversal of 2064437161 is 1617344602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2064437161 - 2¹ = 2064437159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2064437561) 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, 676231 + ... + 679276.

It is an arithmetic number, because the mean of its divisors is an integer number (516448548).

Almost surely, 2^2064437161 is an apocalyptic number.

It is an amenable number.

2064437161 is a deficient number, since it is larger than the sum of its proper divisors (1357031).

2064437161 is a wasteful number, since it uses less digits than its factorization.

2064437161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357030.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 2064437161 is about 45436.0777466541. The cubic root of 2064437161 is about 1273.3092362166.

The spelling of 2064437161 in words is "two billion, sixty-four million, four hundred thirty-seven thousand, one hundred sixty-one".