65414035861 has 4 divisors (see below), whose sum is σ = 67669692300. Its totient is φ = 63158379424.

The previous prime is 65414035783. The next prime is 65414035873. The reversal of 65414035861 is 16853041456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35244430225 + 30169605636 = 187735^2 + 173694^2 .

It is a cyclic number.

It is not a de Polignac number, because 65414035861 - 2²⁵ = 65380481429 is a prime.

It is a super-2 number, since 2×65414035861² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65414015861) 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, 1127828176 + ... + 1127828233.

It is an arithmetic number, because the mean of its divisors is an integer number (16917423075).

Almost surely, 2^65414035861 is an apocalyptic number.

It is an amenable number.

65414035861 is a deficient number, since it is larger than the sum of its proper divisors (2255656439).

65414035861 is a wasteful number, since it uses less digits than its factorization.

65414035861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255656438.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 65414035861 in words is "sixty-five billion, four hundred fourteen million, thirty-five thousand, eight hundred sixty-one".