65223596494 has 32 divisors (see below), whose sum is σ = 114117811200. Its totient is φ = 27947076696.

The previous prime is 65223596491. The next prime is 65223596509. The reversal of 65223596494 is 49469532256.

It is a super-2 number, since 2×65223596494² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65223596491) 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, 5278087 + ... + 5290429.

It is an arithmetic number, because the mean of its divisors is an integer number (3566181600).

Almost surely, 2^65223596494 is an apocalyptic number.

65223596494 is a deficient number, since it is larger than the sum of its proper divisors (48894214706).

65223596494 is a wasteful number, since it uses less digits than its factorization.

65223596494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20069 (or 20055 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 55.

The spelling of 65223596494 in words is "sixty-five billion, two hundred twenty-three million, five hundred ninety-six thousand, four hundred ninety-four".