166131030 has 32 divisors (see below), whose sum is σ = 429385824. Its totient is φ = 40893696.

The previous prime is 166131029. The next prime is 166131071. The reversal of 166131030 is 30131661.

It is a junction number, because it is equal to n+sod(n) for n = 166130988 and 166131006.

It is a congruent number.

It is an unprimeable number.

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, 212599 + ... + 213378.

It is an arithmetic number, because the mean of its divisors is an integer number (13418307).

Almost surely, 2^166131030 is an apocalyptic number.

166131030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166131030 is an abundant number, since it is smaller than the sum of its proper divisors (263254794).

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

166131030 is a wasteful number, since it uses less digits than its factorization.

166131030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426000.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 166131030 is about 12889.1826738548. The cubic root of 166131030 is about 549.7310310208.

Adding to 166131030 its reverse (30131661), we get a palindrome (196262691).

The spelling of 166131030 in words is "one hundred sixty-six million, one hundred thirty-one thousand, thirty".