100855663 has 2 divisors, whose sum is σ = 100855664. Its totient is φ = 100855662.

The previous prime is 100855633. The next prime is 100855687. The reversal of 100855663 is 366558001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100855663 - 2²¹ = 98758511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100855633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50427831 + 50427832.

It is an arithmetic number, because the mean of its divisors is an integer number (50427832).

Almost surely, 2^100855663 is an apocalyptic number.

100855663 is a deficient number, since it is larger than the sum of its proper divisors (1).

100855663 is an equidigital number, since it uses as much as digits as its factorization.

100855663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 100855663 is about 10042.6920195732. The cubic root of 100855663 is about 465.4790038382.

The spelling of 100855663 in words is "one hundred million, eight hundred fifty-five thousand, six hundred sixty-three".