100542666 has 16 divisors (see below), whose sum is σ = 229811904. Its totient is φ = 28726464.

The previous prime is 100542649. The next prime is 100542671. The reversal of 100542666 is 666245001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196895 + ... + 1196978.

It is an arithmetic number, because the mean of its divisors is an integer number (14363244).

Almost surely, 2^100542666 is an apocalyptic number.

100542666 is an abundant number, since it is smaller than the sum of its proper divisors (129269238).

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

100542666 is a wasteful number, since it uses less digits than its factorization.

100542666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393885.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 100542666 is about 10027.0965887439. The cubic root of 100542666 is about 464.9969799781.

Adding to 100542666 its reverse (666245001), we get a palindrome (766787667).

It can be divided in two parts, 10054 and 2666, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 100542666 in words is "one hundred million, five hundred forty-two thousand, six hundred sixty-six".