100551105604987 has 2 divisors, whose sum is σ = 100551105604988. Its totient is φ = 100551105604986.

The previous prime is 100551105604979. The next prime is 100551105605053. The reversal of 100551105604987 is 789406501155001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100551105604987 - 2³ = 100551105604979 is a prime.

It is a super-2 number, since 2×100551105604987² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100551105604907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50275552802493 + 50275552802494.

It is an arithmetic number, because the mean of its divisors is an integer number (50275552802494).

Almost surely, 2^{100551105604987} is an apocalyptic number.

100551105604987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100551105604987 is an equidigital number, since it uses as much as digits as its factorization.

100551105604987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 52.

Adding to 100551105604987 its reverse (789406501155001), we get a palindrome (889957606759988).

The spelling of 100551105604987 in words is "one hundred trillion, five hundred fifty-one billion, one hundred five million, six hundred four thousand, nine hundred eighty-seven".