1620110216 has 8 divisors (see below), whose sum is σ = 3037706670. Its totient is φ = 810055104.

The previous prime is 1620110213. The next prime is 1620110237. The reversal of 1620110216 is 6120110261.

It can be written as a sum of positive squares in only one way, i.e., 1177176100 + 442934116 = 34310^2 + 21046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1620110216² = 5249514223975133312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1620110213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101256881 + ... + 101256896.

Almost surely, 2^1620110216 is an apocalyptic number.

It is an amenable number.

1620110216 is a deficient number, since it is larger than the sum of its proper divisors (1417596454).

1620110216 is a wasteful number, since it uses less digits than its factorization.

1620110216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202513783 (or 202513779 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1620110216 is about 40250.5927409771. The cubic root of 1620110216 is about 1174.4869263795.

Adding to 1620110216 its reverse (6120110261), we get a palindrome (7740220477).

The spelling of 1620110216 in words is "one billion, six hundred twenty million, one hundred ten thousand, two hundred sixteen".