65422378677 has 16 divisors (see below), whose sum is σ = 87613565760. Its totient is φ = 43423200000.

The previous prime is 65422378673. The next prime is 65422378711. The reversal of 65422378677 is 77687322456.

It is not a de Polignac number, because 65422378677 - 2² = 65422378673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65422378673) 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, 1947927 + ... + 1981227.

It is an arithmetic number, because the mean of its divisors is an integer number (5475847860).

Almost surely, 2^65422378677 is an apocalyptic number.

It is an amenable number.

65422378677 is a deficient number, since it is larger than the sum of its proper divisors (22191187083).

65422378677 is a wasteful number, since it uses less digits than its factorization.

65422378677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36164.

The product of its digits is 23708160, while the sum is 57.

The spelling of 65422378677 in words is "sixty-five billion, four hundred twenty-two million, three hundred seventy-eight thousand, six hundred seventy-seven".