166633105433442 has 16 divisors (see below), whose sum is σ = 338240333417952. Its totient is φ = 54715348052640.

The previous prime is 166633105433419. The next prime is 166633105433449. The reversal of 166633105433442 is 244334501336661.

It is not an unprimeable number, because it can be changed into a prime (166633105433449) 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 7 ways as a sum of consecutive naturals, for example, 207255105859 + ... + 207255106662.

It is an arithmetic number, because the mean of its divisors is an integer number (21140020838622).

Almost surely, 2^{166633105433442} is an apocalyptic number.

166633105433442 is an abundant number, since it is smaller than the sum of its proper divisors (171607227984510).

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

166633105433442 is a wasteful number, since it uses less digits than its factorization.

166633105433442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414510212593.

The product of its (nonzero) digits is 11197440, while the sum is 51.

The spelling of 166633105433442 in words is "one hundred sixty-six trillion, six hundred thirty-three billion, one hundred five million, four hundred thirty-three thousand, four hundred forty-two".