16651451322 has 48 divisors (see below), whose sum is σ = 40273298208. Its totient is φ = 4928545440.

The previous prime is 16651451317. The next prime is 16651451339. The reversal of 16651451322 is 22315415661.

16651451322 is a `hidden beast` number, since 1 + 6 + 6 + 514 + 5 + 132 + 2 = 666.

It is a super-2 number, since 2×16651451322² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 969373 + ... + 986400.

It is an arithmetic number, because the mean of its divisors is an integer number (839027046).

Almost surely, 2^16651451322 is an apocalyptic number.

16651451322 is an abundant number, since it is smaller than the sum of its proper divisors (23621846886).

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

16651451322 is a wasteful number, since it uses less digits than its factorization.

16651451322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955835 (or 1955832 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

Adding to 16651451322 its reverse (22315415661), we get a palindrome (38966866983).

The spelling of 16651451322 in words is "sixteen billion, six hundred fifty-one million, four hundred fifty-one thousand, three hundred twenty-two".