65720104 has 16 divisors (see below), whose sum is σ = 123631200. Its totient is φ = 32751792.

The previous prime is 65720071. The next prime is 65720117. The reversal of 65720104 is 40102756.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10924 + ... + 15835.

It is an arithmetic number, because the mean of its divisors is an integer number (7726950).

Almost surely, 2^65720104 is an apocalyptic number.

It is an amenable number.

65720104 is a deficient number, since it is larger than the sum of its proper divisors (57911096).

65720104 is a wasteful number, since it uses less digits than its factorization.

65720104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27072 (or 27068 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 65720104 is about 8106.7936941802. The cubic root of 65720104 is about 403.5519163683.

The spelling of 65720104 in words is "sixty-five million, seven hundred twenty thousand, one hundred four".