216549486069 has 8 divisors (see below), whose sum is σ = 329980169280. Its totient is φ = 123742563456.

The previous prime is 216549486061. The next prime is 216549486143. The reversal of 216549486069 is 960684945612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216549486069 - 2³ = 216549486061 is a prime.

It is a super-2 number, since 2×216549486069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216549486061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5155940124 + ... + 5155940165.

It is an arithmetic number, because the mean of its divisors is an integer number (41247521160).

Almost surely, 2^216549486069 is an apocalyptic number.

It is an amenable number.

216549486069 is a deficient number, since it is larger than the sum of its proper divisors (113430683211).

216549486069 is a wasteful number, since it uses less digits than its factorization.

216549486069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10311880299.

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 216549486069 in words is "two hundred sixteen billion, five hundred forty-nine million, four hundred eighty-six thousand, sixty-nine".