2064065421 has 16 divisors (see below), whose sum is σ = 3178882368. Its totient is φ = 1177363200.

The previous prime is 2064065413. The next prime is 2064065441. The reversal of 2064065421 is 1245604602.

It is not a de Polignac number, because 2064065421 - 2³ = 2064065413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064065411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1839070 + ... + 1840191.

It is an arithmetic number, because the mean of its divisors is an integer number (198680148).

Almost surely, 2^2064065421 is an apocalyptic number.

It is an amenable number.

2064065421 is a deficient number, since it is larger than the sum of its proper divisors (1114816947).

2064065421 is a wasteful number, since it uses less digits than its factorization.

2064065421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679292.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2064065421 is about 45431.9867604312. The cubic root of 2064065421 is about 1273.2328040219.

The spelling of 2064065421 in words is "two billion, sixty-four million, sixty-five thousand, four hundred twenty-one".