100406636543 has 2 divisors, whose sum is σ = 100406636544. Its totient is φ = 100406636542.

The previous prime is 100406636513. The next prime is 100406636549. The reversal of 100406636543 is 345636604001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100406636543 - 2¹⁶ = 100406571007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100406636497 and 100406636506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100406636549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50203318271 + 50203318272.

It is an arithmetic number, because the mean of its divisors is an integer number (50203318272).

Almost surely, 2^100406636543 is an apocalyptic number.

100406636543 is a deficient number, since it is larger than the sum of its proper divisors (1).

100406636543 is an equidigital number, since it uses as much as digits as its factorization.

100406636543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 100406636543 in words is "one hundred billion, four hundred six million, six hundred thirty-six thousand, five hundred forty-three".