1616216208 has 40 divisors (see below), whose sum is σ = 4187232000. Its totient is φ = 537189504.

The previous prime is 1616216201. The next prime is 1616216221. The reversal of 1616216208 is 8026126161.

It is a super-2 number, since 2×1616216208² = 5224309662003798528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616216201) 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, 31488 + ... + 64991.

It is an arithmetic number, because the mean of its divisors is an integer number (104680800).

Almost surely, 2^1616216208 is an apocalyptic number.

It is an amenable number.

1616216208 is an abundant number, since it is smaller than the sum of its proper divisors (2571015792).

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

1616216208 is a wasteful number, since it uses less digits than its factorization.

1616216208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96839 (or 96833 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1616216208 is about 40202.1915820518. The cubic root of 1616216208 is about 1173.5451940380.

The spelling of 1616216208 in words is "one billion, six hundred sixteen million, two hundred sixteen thousand, two hundred eight".