1616313822681 has 16 divisors (see below), whose sum is σ = 2158843796928. Its totient is φ = 1075663488000.

The previous prime is 1616313822671. The next prime is 1616313822737. The reversal of 1616313822681 is 1862283136161.

It is not a de Polignac number, because 1616313822681 - 2¹¹ = 1616313820633 is a prime.

It is a super-2 number, since 2×1616313822681² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616313822681.

It is not an unprimeable number, because it can be changed into a prime (1616313822601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28995046 + ... + 29050736.

It is an arithmetic number, because the mean of its divisors is an integer number (134927737308).

Almost surely, 2^{1616313822681} is an apocalyptic number.

It is an amenable number.

1616313822681 is a deficient number, since it is larger than the sum of its proper divisors (542529974247).

1616313822681 is a wasteful number, since it uses less digits than its factorization.

1616313822681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72392.

The product of its digits is 497664, while the sum is 48.

The spelling of 1616313822681 in words is "one trillion, six hundred sixteen billion, three hundred thirteen million, eight hundred twenty-two thousand, six hundred eighty-one".