216011619 has 6 divisors (see below), whose sum is σ = 312016796. Its totient is φ = 144007740.

The previous prime is 216011557. The next prime is 216011669. The reversal of 216011619 is 916110612.

It is not a de Polignac number, because 216011619 - 2⁸ = 216011363 is a prime.

It is a super-2 number, since 2×216011619² = 93322039086002322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216011592 and 216011601.

It is not an unprimeable number, because it can be changed into a prime (216011669) 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, 12000637 + ... + 12000654.

Almost surely, 2^216011619 is an apocalyptic number.

216011619 is a deficient number, since it is larger than the sum of its proper divisors (96005177).

216011619 is a wasteful number, since it uses less digits than its factorization.

216011619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24001297 (or 24001294 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 216011619 is about 14697.3337377907. Note that the first 3 decimals coincide. The cubic root of 216011619 is about 600.0107581404.

It can be divided in two parts, 21601 and 1619, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 216011619 in words is "two hundred sixteen million, eleven thousand, six hundred nineteen".