65073320 has 32 divisors (see below), whose sum is σ = 157678920. Its totient is φ = 24026880.

The previous prime is 65073313. The next prime is 65073341. The reversal of 65073320 is 2337056.

It can be written as a sum of positive squares in 4 ways, for example, as 41705764 + 23367556 = 6458^2 + 4834^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 65073320.

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, 62051 + ... + 63090.

Almost surely, 2^65073320 is an apocalyptic number.

It is an amenable number.

65073320 is an abundant number, since it is smaller than the sum of its proper divisors (92605600).

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

65073320 is a wasteful number, since it uses less digits than its factorization.

65073320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125165 (or 125161 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 65073320 is about 8066.8035801053. The cubic root of 65073320 is about 402.2236983396.

The spelling of 65073320 in words is "sixty-five million, seventy-three thousand, three hundred twenty".