65260350523220 has 48 divisors (see below), whose sum is σ = 140399826629328. Its totient is φ = 25465551421440.

The previous prime is 65260350523217. The next prime is 65260350523231. The reversal of 65260350523220 is 2232505306256.

It can be written as a sum of positive squares in 8 ways, for example, as 5422359331216 + 59837991192004 = 2328596^2 + 7735502^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8036084 + ... + 13967796.

It is an arithmetic number, because the mean of its divisors is an integer number (2924996388111).

Almost surely, 2^{65260350523220} is an apocalyptic number.

It is an amenable number.

65260350523220 is an abundant number, since it is smaller than the sum of its proper divisors (75139476106108).

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

65260350523220 is a wasteful number, since it uses less digits than its factorization.

65260350523220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5945180 (or 5945178 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 65260350523220 its reverse (2232505306256), we get a palindrome (67492855829476).

The spelling of 65260350523220 in words is "sixty-five trillion, two hundred sixty billion, three hundred fifty million, five hundred twenty-three thousand, two hundred twenty".