100555606509 has 8 divisors (see below), whose sum is σ = 141960856320. Its totient is φ = 63093713856.

The previous prime is 100555606499. The next prime is 100555606523. The reversal of 100555606509 is 905606555001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100555606509 - 2¹⁶ = 100555540973 is a prime.

It is a super-2 number, since 2×100555606509² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100595606509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985839229 + ... + 985839330.

It is an arithmetic number, because the mean of its divisors is an integer number (17745107040).

Almost surely, 2^100555606509 is an apocalyptic number.

It is an amenable number.

100555606509 is a deficient number, since it is larger than the sum of its proper divisors (41405249811).

100555606509 is a wasteful number, since it uses less digits than its factorization.

100555606509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971678579.

The product of its (nonzero) digits is 202500, while the sum is 42.

The spelling of 100555606509 in words is "one hundred billion, five hundred fifty-five million, six hundred six thousand, five hundred nine".