65236523140 has 24 divisors (see below), whose sum is σ = 137437215552. Its totient is φ = 26010701280.

The previous prime is 65236523111. The next prime is 65236523171. The reversal of 65236523140 is 4132563256.

It is a self number, because there is not a number n which added to its sum of digits gives 65236523140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5237874 + ... + 5250313.

It is an arithmetic number, because the mean of its divisors is an integer number (5726550648).

Almost surely, 2^65236523140 is an apocalyptic number.

It is an amenable number.

65236523140 is an abundant number, since it is smaller than the sum of its proper divisors (72200692412).

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

65236523140 is a wasteful number, since it uses less digits than its factorization.

65236523140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10488507 (or 10488505 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 65236523140 in words is "sixty-five billion, two hundred thirty-six million, five hundred twenty-three thousand, one hundred forty".