65653541320 has 16 divisors (see below), whose sum is σ = 147720468060. Its totient is φ = 26261416512.

The previous prime is 65653541309. The next prime is 65653541329. The reversal of 65653541320 is 2314535656.

It can be written as a sum of positive squares in 2 ways, for example, as 65506307364 + 147233956 = 255942^2 + 12134^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1641338533 = 65653541320 / (6 + 5 + 6 + 5 + 3 + 5 + 4 + 1 + 3 + 2 + 0).

It is not an unprimeable number, because it can be changed into a prime (65653541329) 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, 820669227 + ... + 820669306.

Almost surely, 2^65653541320 is an apocalyptic number.

It is an amenable number.

65653541320 is an abundant number, since it is smaller than the sum of its proper divisors (82066926740).

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

65653541320 is a wasteful number, since it uses less digits than its factorization.

65653541320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641338544 (or 1641338540 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 65653541320 in words is "sixty-five billion, six hundred fifty-three million, five hundred forty-one thousand, three hundred twenty".