1616361652116 has 18 divisors (see below), whose sum is σ = 4085803065162. Its totient is φ = 538787217360.

The previous prime is 1616361652069. The next prime is 1616361652123. The reversal of 1616361652116 is 6112561636161.

1616361652116 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 3 + 616 + 5 + 21 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1614414195216 + 1947456900 = 1270596^2 + 44130^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1616361652116² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22449467355 + ... + 22449467426.

Almost surely, 2^{1616361652116} is an apocalyptic number.

It is an amenable number.

1616361652116 is an abundant number, since it is smaller than the sum of its proper divisors (2469441413046).

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

1616361652116 is a wasteful number, since it uses less digits than its factorization.

1616361652116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44898934791 (or 44898934786 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The spelling of 1616361652116 in words is "one trillion, six hundred sixteen billion, three hundred sixty-one million, six hundred fifty-two thousand, one hundred sixteen".