166026860 has 24 divisors (see below), whose sum is σ = 348906096. Its totient is φ = 66363200.

The previous prime is 166026853. The next prime is 166026863. The reversal of 166026860 is 68620661.

It is a self number, because there is not a number n which added to its sum of digits gives 166026860.

It is not an unprimeable number, because it can be changed into a prime (166026863) 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, 43010 + ... + 46710.

It is an arithmetic number, because the mean of its divisors is an integer number (14537754).

Almost surely, 2^166026860 is an apocalyptic number.

166026860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166026860 is an abundant number, since it is smaller than the sum of its proper divisors (182879236).

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

166026860 is a wasteful number, since it uses less digits than its factorization.

166026860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5953 (or 5951 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 166026860 is about 12885.1410547188. The cubic root of 166026860 is about 549.6161067652.

The spelling of 166026860 in words is "one hundred sixty-six million, twenty-six thousand, eight hundred sixty".