16220505562 has 16 divisors (see below), whose sum is σ = 26650325160. Its totient is φ = 7369965568.

The previous prime is 16220505551. The next prime is 16220505563. The reversal of 16220505562 is 26550502261.

It can be written as a sum of positive squares in 4 ways, for example, as 15435329121 + 785176441 = 124239^2 + 28021^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (16220505563) 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, 8224423 + ... + 8226394.

Almost surely, 2^16220505562 is an apocalyptic number.

16220505562 is a deficient number, since it is larger than the sum of its proper divisors (10429819598).

16220505562 is a wasteful number, since it uses less digits than its factorization.

16220505562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16450865.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 16220505562 in words is "sixteen billion, two hundred twenty million, five hundred five thousand, five hundred sixty-two".