106166621 has 8 divisors (see below), whose sum is σ = 116239584. Its totient is φ = 96163920.

The previous prime is 106166611. The next prime is 106166629. The reversal of 106166621 is 126661601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106166621 - 2²⁶ = 39057757 is a prime.

It is a super-2 number, since 2×106166621² = 22542702829115282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106166629) 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 7 ways as a sum of consecutive naturals, for example, 14375 + ... + 20468.

It is an arithmetic number, because the mean of its divisors is an integer number (14529948).

Almost surely, 2^106166621 is an apocalyptic number.

106166621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

106166621 is a deficient number, since it is larger than the sum of its proper divisors (10072963).

106166621 is a wasteful number, since it uses less digits than its factorization.

106166621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35131.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 106166621 is about 10303.7187946877. The cubic root of 106166621 is about 473.5101924006.

The spelling of 106166621 in words is "one hundred six million, one hundred sixty-six thousand, six hundred twenty-one".