16161608 has 32 divisors (see below), whose sum is σ = 31570560. Its totient is φ = 7750080.

The previous prime is 16161589. The next prime is 16161623. The reversal of 16161608 is 80616161.

It is a super-2 number, since 2×16161608² = 522395146291328, which 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 7 ways as a sum of consecutive naturals, for example, 19523 + ... + 20333.

It is an arithmetic number, because the mean of its divisors is an integer number (986580).

Almost surely, 2^16161608 is an apocalyptic number.

It is an amenable number.

16161608 is a deficient number, since it is larger than the sum of its proper divisors (15408952).

16161608 is a wasteful number, since it uses less digits than its factorization.

16161608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 16161608 is about 4020.1502459485. The cubic root of 16161608 is about 252.8297583539.

Adding to 16161608 its reverse (80616161), we get a palindrome (96777769).

The spelling of 16161608 in words is "sixteen million, one hundred sixty-one thousand, six hundred eight".