16261616162 has 12 divisors (see below), whose sum is σ = 26811508038. Its totient is φ = 7391643600.

The previous prime is 16261616159. The next prime is 16261616171. The reversal of 16261616162 is 26161616261.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15722401321 + 539214841 = 125389^2 + 23221^2 .

It is a super-2 number, since 2×16261616162² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33598139 + ... + 33598622.

Almost surely, 2^16261616162 is an apocalyptic number.

16261616162 is a deficient number, since it is larger than the sum of its proper divisors (10549891876).

16261616162 is a wasteful number, since it uses less digits than its factorization.

16261616162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67196785 (or 67196774 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

Subtracting 16261616162 from its reverse (26161616261), we obtain a palindrome (9900000099).

The spelling of 16261616162 in words is "sixteen billion, two hundred sixty-one million, six hundred sixteen thousand, one hundred sixty-two".