65422219944919 has 2 divisors, whose sum is σ = 65422219944920. Its totient is φ = 65422219944918.

The previous prime is 65422219944877. The next prime is 65422219944979. The reversal of 65422219944919 is 91944991222456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65422219944919 - 2²³ = 65422211556311 is a prime.

It is a super-2 number, since 2×65422219944919² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65422219944979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32711109972459 + 32711109972460.

It is an arithmetic number, because the mean of its divisors is an integer number (32711109972460).

Almost surely, 2^{65422219944919} is an apocalyptic number.

65422219944919 is a deficient number, since it is larger than the sum of its proper divisors (1).

65422219944919 is an equidigital number, since it uses as much as digits as its factorization.

65422219944919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100776960, while the sum is 67.

The spelling of 65422219944919 in words is "sixty-five trillion, four hundred twenty-two billion, two hundred nineteen million, nine hundred forty-four thousand, nine hundred nineteen".