100556365499 has 2 divisors, whose sum is σ = 100556365500. Its totient is φ = 100556365498.

The previous prime is 100556365489. The next prime is 100556365513. The reversal of 100556365499 is 994563655001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100556365499 - 2¹² = 100556361403 is a prime.

It is a super-2 number, since 2×100556365499² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100556365499.

It is not a weakly prime, because it can be changed into another prime (100556365489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50278182749 + 50278182750.

It is an arithmetic number, because the mean of its divisors is an integer number (50278182750).

Almost surely, 2^100556365499 is an apocalyptic number.

100556365499 is a deficient number, since it is larger than the sum of its proper divisors (1).

100556365499 is an equidigital number, since it uses as much as digits as its factorization.

100556365499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374000, while the sum is 53.

The spelling of 100556365499 in words is "one hundred billion, five hundred fifty-six million, three hundred sixty-five thousand, four hundred ninety-nine".