1616016161 has 8 divisors (see below), whose sum is σ = 1639678464. Its totient is φ = 1592379040.

The previous prime is 1616016151. The next prime is 1616016169. The reversal of 1616016161 is 1616106161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1616016161 is a prime.

It is a super-2 number, since 2×1616016161² = 5223016465226355842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1616016169) 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, 151541 + ... + 161853.

It is an arithmetic number, because the mean of its divisors is an integer number (204959808).

Almost surely, 2^1616016161 is an apocalyptic number.

It is an amenable number.

1616016161 is a deficient number, since it is larger than the sum of its proper divisors (23662303).

1616016161 is a wasteful number, since it uses less digits than its factorization.

1616016161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12591.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1616016161 is about 40199.7034939314. The cubic root of 1616016161 is about 1173.4967735604.

Subtracting 1616016161 from its reverse (1616106161), we obtain a square (90000 = 300²).

The spelling of 1616016161 in words is "one billion, six hundred sixteen million, sixteen thousand, one hundred sixty-one".