65497128160 has 24 divisors (see below), whose sum is σ = 154736965656. Its totient is φ = 26198851200.

The previous prime is 65497128133. The next prime is 65497128167. The reversal of 65497128160 is 6182179456.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65497128167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204678366 + ... + 204678685.

It is an arithmetic number, because the mean of its divisors is an integer number (6447373569).

Almost surely, 2^65497128160 is an apocalyptic number.

It is an amenable number.

65497128160 is an abundant number, since it is smaller than the sum of its proper divisors (89239837496).

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

65497128160 is a wasteful number, since it uses less digits than its factorization.

65497128160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409357066 (or 409357058 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 65497128160 in words is "sixty-five billion, four hundred ninety-seven million, one hundred twenty-eight thousand, one hundred sixty".