16722062505 has 24 divisors (see below), whose sum is σ = 29984390280. Its totient is φ = 8610900480.

The previous prime is 16722062473. The next prime is 16722062521. The reversal of 16722062505 is 50526022761.

16722062505 is a `hidden beast` number, since 1 + 6 + 7 + 2 + 20 + 625 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4691702016 + 12030360489 = 68496^2 + 109683^2 .

It is not a de Polignac number, because 16722062505 - 2⁵ = 16722062473 is a prime.

It is a super-2 number, since 2×16722062505² (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 16722062505.

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 23 ways as a sum of consecutive naturals, for example, 6405616 + ... + 6408225.

It is an arithmetic number, because the mean of its divisors is an integer number (1249349595).

Almost surely, 2^16722062505 is an apocalyptic number.

16722062505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16722062505 is a deficient number, since it is larger than the sum of its proper divisors (13262327775).

16722062505 is a wasteful number, since it uses less digits than its factorization.

16722062505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12813881 (or 12813878 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 16722062505 in words is "sixteen billion, seven hundred twenty-two million, sixty-two thousand, five hundred five".