166890136063 has 8 divisors (see below), whose sum is σ = 190750720160. Its totient is φ = 143034336000.

The previous prime is 166890136057. The next prime is 166890136081. The reversal of 166890136063 is 360631098661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166890136063 - 2¹⁷ = 166890004991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166890135998 and 166890136016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166890136003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120938 + ... + 1261063.

It is an arithmetic number, because the mean of its divisors is an integer number (23843840020).

Almost surely, 2^166890136063 is an apocalyptic number.

166890136063 is a deficient number, since it is larger than the sum of its proper divisors (23860584097).

166890136063 is a wasteful number, since it uses less digits than its factorization.

166890136063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392017.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 166890136063 in words is "one hundred sixty-six billion, eight hundred ninety million, one hundred thirty-six thousand, sixty-three".