100561533363 has 12 divisors (see below), whose sum is σ = 151571007120. Its totient is φ = 64126195056.

The previous prime is 100561533329. The next prime is 100561533379. The reversal of 100561533363 is 363335165001.

100561533363 is a `hidden beast` number, since 1 + 0 + 0 + 5 + 61 + 533 + 3 + 63 = 666.

It is not a de Polignac number, because 100561533363 - 2¹⁰ = 100561532339 is a prime.

It is a super-2 number, since 2×100561533363² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100561583363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242902048 + ... + 242902461.

It is an arithmetic number, because the mean of its divisors is an integer number (12630917260).

Almost surely, 2^100561533363 is an apocalyptic number.

100561533363 is a deficient number, since it is larger than the sum of its proper divisors (51009473757).

100561533363 is a wasteful number, since it uses less digits than its factorization.

100561533363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485804538 (or 485804535 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 36.

Adding to 100561533363 its reverse (363335165001), we get a palindrome (463896698364).

The spelling of 100561533363 in words is "one hundred billion, five hundred sixty-one million, five hundred thirty-three thousand, three hundred sixty-three".