166940850028 has 12 divisors (see below), whose sum is σ = 292174675632. Its totient is φ = 83462371280.

The previous prime is 166940850023. The next prime is 166940850029. The reversal of 166940850028 is 820058049661.

It is not an unprimeable number, because it can be changed into a prime (166940850023) 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 3 ways as a sum of consecutive naturals, for example, 1966675 + ... + 2049802.

It is an arithmetic number, because the mean of its divisors is an integer number (24347889636).

Almost surely, 2^166940850028 is an apocalyptic number.

It is an amenable number.

166940850028 is a deficient number, since it is larger than the sum of its proper divisors (125233825604).

166940850028 is a wasteful number, since it uses less digits than its factorization.

166940850028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026872 (or 4026870 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

Adding to 166940850028 its reverse (820058049661), we get a palindrome (986998899689).

The spelling of 166940850028 in words is "one hundred sixty-six billion, nine hundred forty million, eight hundred fifty thousand, twenty-eight".