16161522 has 16 divisors (see below), whose sum is σ = 34809600. Its totient is φ = 4972752.

The previous prime is 16161521. The next prime is 16161527. The reversal of 16161522 is 22516161.

It is a super-2 number, since 2×16161522² = 522389586712968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16161492 and 16161501.

It is not an unprimeable number, because it can be changed into a prime (16161521) 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, 103522 + ... + 103677.

It is an arithmetic number, because the mean of its divisors is an integer number (2175600).

Almost surely, 2^16161522 is an apocalyptic number.

16161522 is an abundant number, since it is smaller than the sum of its proper divisors (18648078).

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

16161522 is a wasteful number, since it uses less digits than its factorization.

16161522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207217.

The product of its digits is 720, while the sum is 24.

The square root of 16161522 is about 4020.1395498166. The cubic root of 16161522 is about 252.8293098961.

Adding to 16161522 its reverse (22516161), we get a palindrome (38677683).

The spelling of 16161522 in words is "sixteen million, one hundred sixty-one thousand, five hundred twenty-two".