65537157168 has 240 divisors, whose sum is σ = 224066658816. Its totient is φ = 17473674240.

The previous prime is 65537157167. The next prime is 65537157227. The reversal of 65537157168 is 86175173556.

It is a happy number.

65537157168 is a `hidden beast` number, since 6 + 5 + 5 + 3 + 7 + 1 + 571 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (65537157167) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 916071 + ... + 985017.

Almost surely, 2^65537157168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65537157168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112033329408).

65537157168 is an abundant number, since it is smaller than the sum of its proper divisors (158529501648).

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

65537157168 is a wasteful number, since it uses less digits than its factorization.

65537157168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69032 (or 69023 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 54.

The spelling of 65537157168 in words is "sixty-five billion, five hundred thirty-seven million, one hundred fifty-seven thousand, one hundred sixty-eight".