166011644331333 has 64 divisors (see below), whose sum is σ = 260587776384000. Its totient is φ = 104161422771648.

The previous prime is 166011644331331. The next prime is 166011644331341. The reversal of 166011644331333 is 333133446110661.

166011644331333 is a `hidden beast` number, since 1 + 6 + 60 + 1 + 16 + 443 + 3 + 133 + 3 = 666.

166011644331333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166011644331333 - 2¹ = 166011644331331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166011644331331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 194657638 + ... + 195508616.

It is an arithmetic number, because the mean of its divisors is an integer number (4071684006000).

Almost surely, 2^{166011644331333} is an apocalyptic number.

It is an amenable number.

166011644331333 is a deficient number, since it is larger than the sum of its proper divisors (94576132052667).

166011644331333 is a wasteful number, since it uses less digits than its factorization.

166011644331333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853503 (or 853497 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 45.

The spelling of 166011644331333 in words is "one hundred sixty-six trillion, eleven billion, six hundred forty-four million, three hundred thirty-one thousand, three hundred thirty-three".