65136421432 has 32 divisors (see below), whose sum is σ = 123301530000. Its totient is φ = 32256258048.

The previous prime is 65136421411. The next prime is 65136421501. The reversal of 65136421432 is 23412463156.

It is a junction number, because it is equal to n+sod(n) for n = 65136421391 and 65136421400.

It is a congruent number.

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, 2330919 + ... + 2358697.

Almost surely, 2^65136421432 is an apocalyptic number.

It is an amenable number.

65136421432 is a deficient number, since it is larger than the sum of its proper divisors (58165108568).

65136421432 is a wasteful number, since it uses less digits than its factorization.

65136421432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30583 (or 30579 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

Adding to 65136421432 its reverse (23412463156), we get a palindrome (88548884588).

The spelling of 65136421432 in words is "sixty-five billion, one hundred thirty-six million, four hundred twenty-one thousand, four hundred thirty-two".