16161616162 has 16 divisors (see below), whose sum is σ = 24795978552. Its totient is φ = 7897477120.

The previous prime is 16161616153. The next prime is 16161616181. The reversal of 16161616162 is 26161616161.

It can be written as a sum of positive squares in 4 ways, for example, as 13474334241 + 2687281921 = 116079^2 + 51839^2 .

It is a super-2 number, since 2×16161616162² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269389 + ... + 323872.

Almost surely, 2^16161616162 is an apocalyptic number.

16161616162 is a deficient number, since it is larger than the sum of its proper divisors (8634362390).

16161616162 is a wasteful number, since it uses less digits than its factorization.

16161616162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593573.

The product of its digits is 15552, while the sum is 37.

Subtracting 16161616162 from its reverse (26161616161), we obtain a palindrome (9999999999).

The spelling of 16161616162 in words is "sixteen billion, one hundred sixty-one million, six hundred sixteen thousand, one hundred sixty-two".