65172143622 has 16 divisors (see below), whose sum is σ = 130573370160. Its totient is φ = 21685867392.

The previous prime is 65172143579. The next prime is 65172143623. The reversal of 65172143622 is 22634127156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65172143623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9541423 + ... + 9548250.

It is an arithmetic number, because the mean of its divisors is an integer number (8160835635).

Almost surely, 2^65172143622 is an apocalyptic number.

65172143622 is an abundant number, since it is smaller than the sum of its proper divisors (65401226538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65172143622 is a wasteful number, since it uses less digits than its factorization.

65172143622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19090247.

The product of its digits is 120960, while the sum is 39.

The spelling of 65172143622 in words is "sixty-five billion, one hundred seventy-two million, one hundred forty-three thousand, six hundred twenty-two".