2065985436 has 12 divisors (see below), whose sum is σ = 4820632712. Its totient is φ = 688661808.

The previous prime is 2065985431. The next prime is 2065985437. The reversal of 2065985436 is 6345895602.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2065985436² = 8536591643528220192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065985431) 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, 86082715 + ... + 86082738.

Almost surely, 2^2065985436 is an apocalyptic number.

It is an amenable number.

2065985436 is an abundant number, since it is smaller than the sum of its proper divisors (2754647276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2065985436 is a wasteful number, since it uses less digits than its factorization.

2065985436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172165460 (or 172165458 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The square root of 2065985436 is about 45453.1125006858. The cubic root of 2065985436 is about 1273.6274731125.

The spelling of 2065985436 in words is "two billion, sixty-five million, nine hundred eighty-five thousand, four hundred thirty-six".