100642166 has 16 divisors (see below), whose sum is σ = 153014784. Its totient is φ = 49641984.

The previous prime is 100642163. The next prime is 100642187. The reversal of 100642166 is 661246001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100642163) 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, 47996 + ... + 50048.

It is an arithmetic number, because the mean of its divisors is an integer number (9563424).

Almost surely, 2^100642166 is an apocalyptic number.

100642166 is a deficient number, since it is larger than the sum of its proper divisors (52372618).

100642166 is a wasteful number, since it uses less digits than its factorization.

100642166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 100642166 is about 10032.0569177014. The cubic root of 100642166 is about 465.1503209999.

Adding to 100642166 its reverse (661246001), we get a palindrome (761888167).

The spelling of 100642166 in words is "one hundred million, six hundred forty-two thousand, one hundred sixty-six".