166700370340 has 48 divisors (see below), whose sum is σ = 405715855104. Its totient is φ = 56349417600.

The previous prime is 166700370313. The next prime is 166700370349. The reversal of 166700370340 is 43073007661.

It is a self number, because there is not a number n which added to its sum of digits gives 166700370340.

It is not an unprimeable number, because it can be changed into a prime (166700370349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8375391 + ... + 8395270.

It is an arithmetic number, because the mean of its divisors is an integer number (8452413648).

Almost surely, 2^166700370340 is an apocalyptic number.

166700370340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166700370340 is an abundant number, since it is smaller than the sum of its proper divisors (239015484764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166700370340 is a wasteful number, since it uses less digits than its factorization.

166700370340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16770748 (or 16770746 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The spelling of 166700370340 in words is "one hundred sixty-six billion, seven hundred million, three hundred seventy thousand, three hundred forty".