20012160116 has 24 divisors (see below), whose sum is σ = 37955464680. Its totient is φ = 9177547392.

The previous prime is 20012160109. The next prime is 20012160121. The reversal of 20012160116 is 61106121002.

It can be written as a sum of positive squares in 4 ways, for example, as 540748516 + 19471411600 = 23254^2 + 139540^2 .

It is a super-2 number, since 2×20012160116² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217471 + ... + 1233798.

It is an arithmetic number, because the mean of its divisors is an integer number (1581477695).

Almost surely, 2^20012160116 is an apocalyptic number.

20012160116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20012160116 is a deficient number, since it is larger than the sum of its proper divisors (17943304564).

20012160116 is a wasteful number, since it uses less digits than its factorization.

20012160116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451443 (or 2451441 counting only the distinct ones).

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

Adding to 20012160116 its reverse (61106121002), we get a palindrome (81118281118).

The spelling of 20012160116 in words is "twenty billion, twelve million, one hundred sixty thousand, one hundred sixteen".