65123164040 has 64 divisors (see below), whose sum is σ = 159935670720. Its totient is φ = 23668128000.

The previous prime is 65123164027. The next prime is 65123164079. The reversal of 65123164040 is 4046132156.

65123164040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65123163988 and 65123164006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 779075 + ... + 858605.

It is an arithmetic number, because the mean of its divisors is an integer number (2498994855).

Almost surely, 2^65123164040 is an apocalyptic number.

It is an amenable number.

65123164040 is an abundant number, since it is smaller than the sum of its proper divisors (94812506680).

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

65123164040 is a wasteful number, since it uses less digits than its factorization.

65123164040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81414 (or 81410 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 65123164040 its reverse (4046132156), we get a palindrome (69169296196).

The spelling of 65123164040 in words is "sixty-five billion, one hundred twenty-three million, one hundred sixty-four thousand, forty".