1601606005011 has 6 divisors (see below), whose sum is σ = 2313430896140. Its totient is φ = 1067737336668.

The previous prime is 1601606004991. The next prime is 1601606005039. The reversal of 1601606005011 is 1105006061061.

1601606005011 is a `hidden beast` number, since 1 + 6 + 0 + 1 + 6 + 0 + 600 + 50 + 1 + 1 = 666.

It is not a de Polignac number, because 1601606005011 - 2⁷ = 1601606004883 is a prime.

It is a super-2 number, since 2×1601606005011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601606005411) 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 5 ways as a sum of consecutive naturals, for example, 88978111381 + ... + 88978111398.

Almost surely, 2^{1601606005011} is an apocalyptic number.

1601606005011 is a deficient number, since it is larger than the sum of its proper divisors (711824891129).

1601606005011 is a wasteful number, since it uses less digits than its factorization.

1601606005011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177956222785 (or 177956222782 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 1601606005011 in words is "one trillion, six hundred one billion, six hundred six million, five thousand, eleven".