166054443510431 has 32 divisors (see below), whose sum is σ = 199449879552000. Its totient is φ = 135167093550720.

The previous prime is 166054443510383. The next prime is 166054443510497. The reversal of 166054443510431 is 134015344450661.

It is not a de Polignac number, because 166054443510431 - 2²² = 166054439316127 is a prime.

It is a super-2 number, since 2×166054443510431² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166054443512431) 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 31 ways as a sum of consecutive naturals, for example, 49743890 + ... + 52977008.

It is an arithmetic number, because the mean of its divisors is an integer number (6232808736000).

Almost surely, 2^{166054443510431} is an apocalyptic number.

166054443510431 is a deficient number, since it is larger than the sum of its proper divisors (33395436041569).

166054443510431 is a wasteful number, since it uses less digits than its factorization.

166054443510431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235439.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 166054443510431 in words is "one hundred sixty-six trillion, fifty-four billion, four hundred forty-three million, five hundred ten thousand, four hundred thirty-one".