65497128159 has 8 divisors (see below), whose sum is σ = 88632929920. Its totient is φ = 43013039256.

The previous prime is 65497128133. The next prime is 65497128167. The reversal of 65497128159 is 95182179456.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65497128159 - 2²³ = 65488739551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65497128099 and 65497128108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65497128119) 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, 162927979 + ... + 162928380.

It is an arithmetic number, because the mean of its divisors is an integer number (11079116240).

Almost surely, 2^65497128159 is an apocalyptic number.

65497128159 is a deficient number, since it is larger than the sum of its proper divisors (23135801761).

65497128159 is a wasteful number, since it uses less digits than its factorization.

65497128159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325856429.

The product of its digits is 5443200, while the sum is 57.

The spelling of 65497128159 in words is "sixty-five billion, four hundred ninety-seven million, one hundred twenty-eight thousand, one hundred fifty-nine".