65320072 has 16 divisors (see below), whose sum is σ = 122576400. Its totient is φ = 32633040.

The previous prime is 65320067. The next prime is 65320097. The reversal of 65320072 is 27002356.

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, 10047 + ... + 15217.

It is an arithmetic number, because the mean of its divisors is an integer number (7661025).

Almost surely, 2^65320072 is an apocalyptic number.

It is an amenable number.

65320072 is a deficient number, since it is larger than the sum of its proper divisors (57256328).

65320072 is a wasteful number, since it uses less digits than its factorization.

65320072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756 (or 6752 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 65320072 is about 8082.0833947690. The cubic root of 65320072 is about 402.7314554220.

The spelling of 65320072 in words is "sixty-five million, three hundred twenty thousand, seventy-two".