219540265085 has 16 divisors (see below), whose sum is σ = 273084549120. Its totient is φ = 169255470720.

The previous prime is 219540265081. The next prime is 219540265099. The reversal of 219540265085 is 580562045912.

It is not a de Polignac number, because 219540265085 - 2² = 219540265081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219540265081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2926112 + ... + 3000201.

It is an arithmetic number, because the mean of its divisors is an integer number (17067784320).

Almost surely, 2^219540265085 is an apocalyptic number.

It is an amenable number.

219540265085 is a deficient number, since it is larger than the sum of its proper divisors (53544284035).

219540265085 is a wasteful number, since it uses less digits than its factorization.

219540265085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5926588.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 219540265085 in words is "two hundred nineteen billion, five hundred forty million, two hundred sixty-five thousand, eighty-five".