219570965056 has 21 divisors (see below), whose sum is σ = 435718572681. Its totient is φ = 109783608192.

The previous prime is 219570965027. The next prime is 219570965069. The reversal of 219570965056 is 650569075912.

The square root of 219570965056 is 468584.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 219436033600 + 134931456 = 468440^2 + 11616^2 .

It is a super-2 number, since 2×219570965056² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 219570964988 and 219570965006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3719386 + ... + 3777958.

It is an arithmetic number, because the mean of its divisors is an integer number (20748503461).

Almost surely, 2^219570965056 is an apocalyptic number.

219570965056 is the 468584-th square number.

It is an amenable number.

219570965056 is a deficient number, since it is larger than the sum of its proper divisors (216147607625).

219570965056 is an frugal number, since it uses more digits than its factorization.

219570965056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117158 (or 58575 counting only the distinct ones).

The product of its (nonzero) digits is 5103000, while the sum is 55.

The spelling of 219570965056 in words is "two hundred nineteen billion, five hundred seventy million, nine hundred sixty-five thousand, fifty-six".