166903531090 has 32 divisors (see below), whose sum is σ = 318937927680. Its totient is φ = 62668456704.

The previous prime is 166903531079. The next prime is 166903531127. The reversal of 166903531090 is 90135309661.

166903531090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1230802 + ... + 1359661.

It is an arithmetic number, because the mean of its divisors is an integer number (9966810240).

Almost surely, 2^166903531090 is an apocalyptic number.

166903531090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166903531090 is a deficient number, since it is larger than the sum of its proper divisors (152034396590).

166903531090 is a wasteful number, since it uses less digits than its factorization.

166903531090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590866.

The product of its (nonzero) digits is 131220, while the sum is 43.

The spelling of 166903531090 in words is "one hundred sixty-six billion, nine hundred three million, five hundred thirty-one thousand, ninety".