16661066041041 has 16 divisors (see below), whose sum is σ = 22579683551808. Its totient is φ = 10924925083200.

The previous prime is 16661066041033. The next prime is 16661066041079. The reversal of 16661066041041 is 14014066016661.

It is not a de Polignac number, because 16661066041041 - 2³ = 16661066041033 is a prime.

It is a super-2 number, since 2×16661066041041² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16661066040984 and 16661066041002.

It is not an unprimeable number, because it can be changed into a prime (16661066041021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4044151 + ... + 7048211.

It is an arithmetic number, because the mean of its divisors is an integer number (1411230221988).

Almost surely, 2^{16661066041041} is an apocalyptic number.

It is an amenable number.

16661066041041 is a deficient number, since it is larger than the sum of its proper divisors (5918617510767).

16661066041041 is a wasteful number, since it uses less digits than its factorization.

16661066041041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034432.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 16661066041041 in words is "sixteen trillion, six hundred sixty-one billion, sixty-six million, forty-one thousand, forty-one".