65231432453220 has 96 divisors (see below), whose sum is σ = 199254532853376. Its totient is φ = 15813509376000.

The previous prime is 65231432453183. The next prime is 65231432453237. The reversal of 65231432453220 is 2235423413256.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66902652 + ... + 67870668.

It is an arithmetic number, because the mean of its divisors is an integer number (2075568050556).

Almost surely, 2^{65231432453220} is an apocalyptic number.

65231432453220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65231432453220 is an abundant number, since it is smaller than the sum of its proper divisors (134023100400156).

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

65231432453220 is a wasteful number, since it uses less digits than its factorization.

65231432453220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070141 (or 1070139 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

Adding to 65231432453220 its reverse (2235423413256), we get a palindrome (67466855866476).

The spelling of 65231432453220 in words is "sixty-five trillion, two hundred thirty-one billion, four hundred thirty-two million, four hundred fifty-three thousand, two hundred twenty".