1616677668606 has 256 divisors, whose sum is σ = 4517031536640. Its totient is φ = 372078766080.

The previous prime is 1616677668589. The next prime is 1616677668611. The reversal of 1616677668606 is 6068667766161.

It is a super-2 number, since 2×1616677668606² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 30105276 + ... + 30158928.

It is an arithmetic number, because the mean of its divisors is an integer number (17644654440).

Almost surely, 2^{1616677668606} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1616677668606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2258515768320).

1616677668606 is an abundant number, since it is smaller than the sum of its proper divisors (2900353868034).

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

1616677668606 is a wasteful number, since it uses less digits than its factorization.

1616677668606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53891.

The product of its (nonzero) digits is 109734912, while the sum is 66.

The spelling of 1616677668606 in words is "one trillion, six hundred sixteen billion, six hundred seventy-seven million, six hundred sixty-eight thousand, six hundred six".