65722496 has 32 divisors (see below), whose sum is σ = 149638080. Its totient is φ = 28166400.

The previous prime is 65722487. The next prime is 65722513. The reversal of 65722496 is 69422756.

It is a tau number, because it is divible by the number of its divisors (32).

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, 35780 + ... + 37571.

It is an arithmetic number, because the mean of its divisors is an integer number (4676190).

Almost surely, 2^65722496 is an apocalyptic number.

It is an amenable number.

65722496 is an abundant number, since it is smaller than the sum of its proper divisors (83915584).

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

65722496 is an equidigital number, since it uses as much as digits as its factorization.

65722496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73372 (or 73360 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 65722496 is about 8106.9412234208. The cubic root of 65722496 is about 403.5568123053.

The spelling of 65722496 in words is "sixty-five million, seven hundred twenty-two thousand, four hundred ninety-six".