100066563 has 16 divisors (see below), whose sum is σ = 148608000. Its totient is φ = 66548520.

The previous prime is 100066541. The next prime is 100066591. The reversal of 100066563 is 365660001.

100066563 is a `hidden beast` number, since 1 + 0 + 0 + 0 + 6 + 656 + 3 = 666.

It is not a de Polignac number, because 100066563 - 2²⁶ = 32957699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (100066163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7338 + ... + 15936.

It is an arithmetic number, because the mean of its divisors is an integer number (9288000).

Almost surely, 2^100066563 is an apocalyptic number.

100066563 is a deficient number, since it is larger than the sum of its proper divisors (48541437).

100066563 is an equidigital number, since it uses as much as digits as its factorization.

100066563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9039 (or 9033 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 100066563 is about 10003.3275963551. The cubic root of 100066563 is about 464.2618465454.

The spelling of 100066563 in words is "one hundred million, sixty-six thousand, five hundred sixty-three".