65631160 has 64 divisors (see below), whose sum is σ = 172912320. Its totient is φ = 21949440.

The previous prime is 65631157. The next prime is 65631179. The reversal of 65631160 is 6113656.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8622 + ... + 14338.

It is an arithmetic number, because the mean of its divisors is an integer number (2701755).

Almost surely, 2^65631160 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 65631160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86456160).

65631160 is an abundant number, since it is smaller than the sum of its proper divisors (107281160).

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

65631160 is a wasteful number, since it uses less digits than its factorization.

65631160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776 (or 5772 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 65631160 is about 8101.3060675424. The cubic root of 65631160 is about 403.3697817087.

The spelling of 65631160 in words is "sixty-five million, six hundred thirty-one thousand, one hundred sixty".