65671120 has 40 divisors (see below), whose sum is σ = 154632960. Its totient is φ = 25933440.

The previous prime is 65671117. The next prime is 65671129. The reversal of 65671120 is 2117656.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65671129) 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, 1125 + ... + 11515.

It is an arithmetic number, because the mean of its divisors is an integer number (3865824).

Almost surely, 2^65671120 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 65671120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77316480).

65671120 is an abundant number, since it is smaller than the sum of its proper divisors (88961840).

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

65671120 is a wasteful number, since it uses less digits than its factorization.

65671120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10483 (or 10477 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 65671120 is about 8103.7719612536. The cubic root of 65671120 is about 403.4516299561.

Adding to 65671120 its reverse (2117656), we get a palindrome (67788776).

The spelling of 65671120 in words is "sixty-five million, six hundred seventy-one thousand, one hundred twenty".