1605416161677 has 8 divisors (see below), whose sum is σ = 2141011212000. Its totient is φ = 1070049276240.

The previous prime is 1605416161561. The next prime is 1605416161703. The reversal of 1605416161677 is 7761616145061.

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

It is not a de Polignac number, because 1605416161677 - 2¹¹ = 1605416159629 is a prime.

It is a super-2 number, since 2×1605416161677² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605416161777) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 57024802 + ... + 57052947.

It is an arithmetic number, because the mean of its divisors is an integer number (267626401500).

Almost surely, 2^{1605416161677} is an apocalyptic number.

It is an amenable number.

1605416161677 is a deficient number, since it is larger than the sum of its proper divisors (535595050323).

1605416161677 is a wasteful number, since it uses less digits than its factorization.

1605416161677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114082443.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 1605416161677 in words is "one trillion, six hundred five billion, four hundred sixteen million, one hundred sixty-one thousand, six hundred seventy-seven".