216773032771 has 4 divisors (see below), whose sum is σ = 216774387544. Its totient is φ = 216771678000.

The previous prime is 216773032769. The next prime is 216773032811. The reversal of 216773032771 is 177230377612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216773032771 - 2¹ = 216773032769 is a prime.

It is a super-3 number, since 3×216773032771³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216773032711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399330 + ... + 770071.

It is an arithmetic number, because the mean of its divisors is an integer number (54193596886).

Almost surely, 2^216773032771 is an apocalyptic number.

216773032771 is a deficient number, since it is larger than the sum of its proper divisors (1354773).

216773032771 is a wasteful number, since it uses less digits than its factorization.

216773032771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354772.

The product of its (nonzero) digits is 518616, while the sum is 46.

The spelling of 216773032771 in words is "two hundred sixteen billion, seven hundred seventy-three million, thirty-two thousand, seven hundred seventy-one".