1616163520 has 28 divisors (see below), whose sum is σ = 3848490144. Its totient is φ = 646465280.

The previous prime is 1616163487. The next prime is 1616163529. The reversal of 1616163520 is 253616161.

It is a super-2 number, since 2×1616163520² = 5223969046757580800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616163529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524936 + ... + 2525575.

Almost surely, 2^1616163520 is an apocalyptic number.

1616163520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616163520 is an abundant number, since it is smaller than the sum of its proper divisors (2232326624).

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

1616163520 is an equidigital number, since it uses as much as digits as its factorization.

1616163520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050528 (or 5050518 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1616163520 is about 40201.5362890524. The cubic root of 1616163520 is about 1173.5324415319.

Adding to 1616163520 its reverse (253616161), we get a palindrome (1869779681).

The spelling of 1616163520 in words is "one billion, six hundred sixteen million, one hundred sixty-three thousand, five hundred twenty".