166871624283 has 128 divisors (see below), whose sum is σ = 324635351040. Its totient is φ = 82207457280.

The previous prime is 166871624281. The next prime is 166871624303. The reversal of 166871624283 is 382426178661.

It is a happy number.

166871624283 is a `hidden beast` number, since 1 + 6 + 6 + 8 + 7 + 1 + 624 + 2 + 8 + 3 = 666.

It is not a de Polignac number, because 166871624283 - 2¹ = 166871624281 is a prime.

It is a super-2 number, since 2×166871624283² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166871624281) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5456491 + ... + 5486987.

It is an arithmetic number, because the mean of its divisors is an integer number (2536213680).

Almost surely, 2^166871624283 is an apocalyptic number.

166871624283 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

166871624283 is a deficient number, since it is larger than the sum of its proper divisors (157763726757).

166871624283 is a wasteful number, since it uses less digits than its factorization.

166871624283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30674 (or 30668 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 166871624283 in words is "one hundred sixty-six billion, eight hundred seventy-one million, six hundred twenty-four thousand, two hundred eighty-three".