65576620 has 12 divisors (see below), whose sum is σ = 137710944. Its totient is φ = 26230640.

The previous prime is 65576597. The next prime is 65576629. The reversal of 65576620 is 2667556.

It is a self number, because there is not a number n which added to its sum of digits gives 65576620.

It is not an unprimeable number, because it can be changed into a prime (65576629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1639396 + ... + 1639435.

It is an arithmetic number, because the mean of its divisors is an integer number (11475912).

Almost surely, 2^65576620 is an apocalyptic number.

It is an amenable number.

65576620 is an abundant number, since it is smaller than the sum of its proper divisors (72134324).

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

65576620 is a wasteful number, since it uses less digits than its factorization.

65576620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278840 (or 3278838 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 65576620 is about 8097.9392440299. The cubic root of 65576620 is about 403.2580162774.

The spelling of 65576620 in words is "sixty-five million, five hundred seventy-six thousand, six hundred twenty".