65050219520 has 528 divisors, whose sum is σ = 190179302544. Its totient is φ = 21194342400.

The previous prime is 65050219513. The next prime is 65050219547. The reversal of 65050219520 is 2591205056.

It can be written as a sum of positive squares in 8 ways, for example, as 3292005376 + 61758214144 = 57376^2 + 248512^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330204062 + ... + 330204258.

It is an arithmetic number, because the mean of its divisors is an integer number (360188073).

Almost surely, 2^65050219520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65050219520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95089651272).

65050219520 is an abundant number, since it is smaller than the sum of its proper divisors (125129083024).

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

65050219520 is a wasteful number, since it uses less digits than its factorization.

65050219520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 65050219520 in words is "sixty-five billion, fifty million, two hundred nineteen thousand, five hundred twenty".