219596648607361 has 4 divisors (see below), whose sum is σ = 219596690935300. Its totient is φ = 219596606279424.

The previous prime is 219596648607341. The next prime is 219596648607379. The reversal of 219596648607361 is 163706846695912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 201404888174961 + 18191760432400 = 14191719^2 + 4265180^2 .

It is a cyclic number.

It is not a de Polignac number, because 219596648607361 - 2¹⁵ = 219596648574593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219596648607341) 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, 12083256 + ... + 24190873.

It is an arithmetic number, because the mean of its divisors is an integer number (54899172733825).

It is a 1-persistent number, because it is pandigital, but 2⋅219596648607361 = 439193297214722 is not.

Almost surely, 2^{219596648607361} is an apocalyptic number.

It is an amenable number.

219596648607361 is a deficient number, since it is larger than the sum of its proper divisors (42327939).

219596648607361 is an equidigital number, since it uses as much as digits as its factorization.

219596648607361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42327938.

The product of its (nonzero) digits is 705438720, while the sum is 73.

The spelling of 219596648607361 in words is "two hundred nineteen trillion, five hundred ninety-six billion, six hundred forty-eight million, six hundred seven thousand, three hundred sixty-one".