1616960168986 has 8 divisors (see below), whose sum is σ = 2568113209620. Its totient is φ = 760922432448.

The previous prime is 1616960168947. The next prime is 1616960169017. The reversal of 1616960168986 is 6898610696161.

It can be written as a sum of positive squares in 2 ways, for example, as 1523449586961 + 93510582025 = 1234281^2 + 305795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1616960168986² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23778825981 + ... + 23778826048.

Almost surely, 2^{1616960168986} is an apocalyptic number.

1616960168986 is a deficient number, since it is larger than the sum of its proper divisors (951153040634).

1616960168986 is a wasteful number, since it uses less digits than its factorization.

1616960168986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47557652048.

The product of its (nonzero) digits is 40310784, while the sum is 67.

The spelling of 1616960168986 in words is "one trillion, six hundred sixteen billion, nine hundred sixty million, one hundred sixty-eight thousand, nine hundred eighty-six".