65362810081 has 4 divisors (see below), whose sum is σ = 68802958000. Its totient is φ = 61922662164.

The previous prime is 65362810069. The next prime is 65362810099. The reversal of 65362810081 is 18001826356.

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 65362810081 - 2⁵ = 65362810049 is a prime.

It is a super-2 number, since 2×65362810081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65362811081) 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, 1720073931 + ... + 1720073968.

It is an arithmetic number, because the mean of its divisors is an integer number (17200739500).

Almost surely, 2^65362810081 is an apocalyptic number.

It is an amenable number.

65362810081 is a deficient number, since it is larger than the sum of its proper divisors (3440147919).

65362810081 is a wasteful number, since it uses less digits than its factorization.

65362810081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440147918.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 65362810081 in words is "sixty-five billion, three hundred sixty-two million, eight hundred ten thousand, eighty-one".