2065891201 has 6 divisors (see below), whose sum is σ = 2270773106. Its totient is φ = 1878082800.

The previous prime is 2065891193. The next prime is 2065891213. The reversal of 2065891201 is 1021985602.

It can be written as a sum of positive squares in only one way, i.e., 2009280625 + 56610576 = 44825^2 + 7524^2 .

It is not a de Polignac number, because 2065891201 - 2³ = 2065891193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2065891301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8536620 + ... + 8536861.

Almost surely, 2^2065891201 is an apocalyptic number.

It is an amenable number.

2065891201 is a deficient number, since it is larger than the sum of its proper divisors (204881905).

2065891201 is a wasteful number, since it uses less digits than its factorization.

2065891201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17073503 (or 17073492 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 2065891201 is about 45452.0758711855. The cubic root of 2065891201 is about 1273.6081083245.

The spelling of 2065891201 in words is "two billion, sixty-five million, eight hundred ninety-one thousand, two hundred one".