100406566 has 16 divisors (see below), whose sum is σ = 163026864. Its totient is φ = 46103904.

The previous prime is 100406557. The next prime is 100406597. The reversal of 100406566 is 665604001.

It is a congruent number.

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, 4680 + ... + 14923.

It is an arithmetic number, because the mean of its divisors is an integer number (10189179).

Almost surely, 2^100406566 is an apocalyptic number.

100406566 is a deficient number, since it is larger than the sum of its proper divisors (62620298).

100406566 is a wasteful number, since it uses less digits than its factorization.

100406566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19815.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 100406566 is about 10020.3076799068. The cubic root of 100406566 is about 464.7870701994.

The spelling of 100406566 in words is "one hundred million, four hundred six thousand, five hundred sixty-six".