166099710 has 144 divisors (see below), whose sum is σ = 490977936. Its totient is φ = 35852544.

The previous prime is 166099679. The next prime is 166099723. The reversal of 166099710 is 17990661.

It is a super-2 number, since 2×166099710² = 55178227324168200, which contains 22 as substring.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 530514 + ... + 530826.

It is an arithmetic number, because the mean of its divisors is an integer number (3409569).

Almost surely, 2^166099710 is an apocalyptic number.

166099710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 166099710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245488968).

166099710 is an abundant number, since it is smaller than the sum of its proper divisors (324878226).

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

166099710 is a wasteful number, since it uses less digits than its factorization.

166099710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 166099710 is about 12887.9676442797. The cubic root of 166099710 is about 549.6964826726.

The spelling of 166099710 in words is "one hundred sixty-six million, ninety-nine thousand, seven hundred ten".