219148113816 has 64 divisors (see below), whose sum is σ = 620230543200. Its totient is φ = 71671077504.

The previous prime is 219148113781. The next prime is 219148113829. The reversal of 219148113816 is 618311841912.

219148113816 is a `hidden beast` number, since 2 + 1 + 91 + 481 + 1 + 3 + 81 + 6 = 666.

It is a super-2 number, since 2×219148113816² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9560011 + ... + 9582906.

Almost surely, 2^219148113816 is an apocalyptic number.

It is an amenable number.

219148113816 is an abundant number, since it is smaller than the sum of its proper divisors (401082429384).

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

219148113816 is a wasteful number, since it uses less digits than its factorization.

219148113816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19142985 (or 19142975 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The spelling of 219148113816 in words is "two hundred nineteen billion, one hundred forty-eight million, one hundred thirteen thousand, eight hundred sixteen".