1616334251216 has 20 divisors (see below), whose sum is σ = 3132401083812. Its totient is φ = 807972681216.

The previous prime is 1616334251209. The next prime is 1616334251299. The reversal of 1616334251216 is 6121524336161.

It can be written as a sum of positive squares in 2 ways, for example, as 842180631616 + 774153619600 = 917704^2 + 879860^2 .

It is a super-2 number, since 2×1616334251216² (a number of 25 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 3 ways as a sum of consecutive naturals, for example, 12084185 + ... + 12217208.

Almost surely, 2^{1616334251216} is an apocalyptic number.

1616334251216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1616334251216 is a deficient number, since it is larger than the sum of its proper divisors (1516066832596).

1616334251216 is a wasteful number, since it uses less digits than its factorization.

1616334251216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24305558 (or 24305552 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

Adding to 1616334251216 its reverse (6121524336161), we get a palindrome (7737858587377).

The spelling of 1616334251216 in words is "one trillion, six hundred sixteen billion, three hundred thirty-four million, two hundred fifty-one thousand, two hundred sixteen".