16622261450 has 12 divisors (see below), whose sum is σ = 30917406390. Its totient is φ = 6648904560.

The previous prime is 16622261449. The next prime is 16622261459. The reversal of 16622261450 is 5416222661.

It can be written as a sum of positive squares in 3 ways, for example, as 12286170649 + 4336090801 = 110843^2 + 65849^2 .

It is a super-2 number, since 2×16622261450² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16622261450.

It is not an unprimeable number, because it can be changed into a prime (16622261459) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 166222565 + ... + 166222664.

Almost surely, 2^16622261450 is an apocalyptic number.

16622261450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16622261450 is a deficient number, since it is larger than the sum of its proper divisors (14295144940).

16622261450 is a wasteful number, since it uses less digits than its factorization.

16622261450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332445241 (or 332445236 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 16622261450 in words is "sixteen billion, six hundred twenty-two million, two hundred sixty-one thousand, four hundred fifty".