16616022216 has 32 divisors (see below), whose sum is σ = 41543508960. Its totient is φ = 5538213632.

The previous prime is 16616022211. The next prime is 16616022217. The reversal of 16616022216 is 61222061661.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16616022211) 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, 390736 + ... + 431168.

It is an arithmetic number, because the mean of its divisors is an integer number (1298234655).

Almost surely, 2^16616022216 is an apocalyptic number.

It is an amenable number.

16616022216 is an abundant number, since it is smaller than the sum of its proper divisors (24927486744).

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

16616022216 is a wasteful number, since it uses less digits than its factorization.

16616022216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57565 (or 57561 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

Adding to 16616022216 its reverse (61222061661), we get a palindrome (77838083877).

The spelling of 16616022216 in words is "sixteen billion, six hundred sixteen million, twenty-two thousand, two hundred sixteen".