65672120 has 32 divisors (see below), whose sum is σ = 148212720. Its totient is φ = 26188800.

The previous prime is 65672111. The next prime is 65672143. The reversal of 65672120 is 2127656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11795 + ... + 16445.

Almost surely, 2^65672120 is an apocalyptic number.

It is an amenable number.

65672120 is an abundant number, since it is smaller than the sum of its proper divisors (82540600).

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

65672120 is a wasteful number, since it uses less digits than its factorization.

65672120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015 (or 5011 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 65672120 is about 8103.8336606818. The cubic root of 65672120 is about 403.4536777846.

Adding to 65672120 its reverse (2127656), we get a palindrome (67799776).

The spelling of 65672120 in words is "sixty-five million, six hundred seventy-two thousand, one hundred twenty".