16205321622 has 32 divisors (see below), whose sum is σ = 37058321664. Its totient is φ = 4627893600.

The previous prime is 16205321591. The next prime is 16205321647. The reversal of 16205321622 is 22612350261.

It is a super-2 number, since 2×16205321622² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16205321622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029 + ... + 180032.

It is an arithmetic number, because the mean of its divisors is an integer number (1158072552).

Almost surely, 2^16205321622 is an apocalyptic number.

16205321622 is an abundant number, since it is smaller than the sum of its proper divisors (20853000042).

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

16205321622 is a wasteful number, since it uses less digits than its factorization.

16205321622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183204.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 16205321622 its reverse (22612350261), we get a palindrome (38817671883).

The spelling of 16205321622 in words is "sixteen billion, two hundred five million, three hundred twenty-one thousand, six hundred twenty-two".