219716720001 has 6 divisors (see below), whose sum is σ = 317368595570. Its totient is φ = 146477813328.

The previous prime is 219716719927. The next prime is 219716720011. The reversal of 219716720001 is 100027617912.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 117358315776 + 102358404225 = 342576^2 + 319935^2 .

It is not a de Polignac number, because 219716720001 - 2¹⁴ = 219716703617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219716720011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12206484436 + ... + 12206484453.

Almost surely, 2^219716720001 is an apocalyptic number.

It is an amenable number.

219716720001 is a deficient number, since it is larger than the sum of its proper divisors (97651875569).

219716720001 is a wasteful number, since it uses less digits than its factorization.

219716720001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24412968895 (or 24412968892 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The spelling of 219716720001 in words is "two hundred nineteen billion, seven hundred sixteen million, seven hundred twenty thousand, one".