65633280160 has 48 divisors (see below), whose sum is σ = 177209859456. Its totient is φ = 22502838528.

The previous prime is 65633280131. The next prime is 65633280161. The reversal of 65633280160 is 6108233656.

It is a super-2 number, since 2×65633280160² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (65633280161) 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, 29299452 + ... + 29301691.

It is an arithmetic number, because the mean of its divisors is an integer number (3691872072).

Almost surely, 2^65633280160 is an apocalyptic number.

It is an amenable number.

65633280160 is an abundant number, since it is smaller than the sum of its proper divisors (111576579296).

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

65633280160 is a wasteful number, since it uses less digits than its factorization.

65633280160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58601165 (or 58601157 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 65633280160 in words is "sixty-five billion, six hundred thirty-three million, two hundred eighty thousand, one hundred sixty".