100556145245 has 16 divisors (see below), whose sum is σ = 125935983360. Its totient is φ = 76933743744.

The previous prime is 100556145241. The next prime is 100556145253. The reversal of 100556145245 is 542541655001.

It is a cyclic number.

It is not a de Polignac number, because 100556145245 - 2² = 100556145241 is a prime.

It is a super-2 number, since 2×100556145245² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100556145199 and 100556145208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100556145241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604016 + ... + 752294.

It is an arithmetic number, because the mean of its divisors is an integer number (7870998960).

Almost surely, 2^100556145245 is an apocalyptic number.

It is an amenable number.

100556145245 is a deficient number, since it is larger than the sum of its proper divisors (25379838115).

100556145245 is a wasteful number, since it uses less digits than its factorization.

100556145245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154204.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 100556145245 in words is "one hundred billion, five hundred fifty-six million, one hundred forty-five thousand, two hundred forty-five".