100561643333 has 4 divisors (see below), whose sum is σ = 100615220940. Its totient is φ = 100508065728.

The previous prime is 100561643327. The next prime is 100561643363. The reversal of 100561643333 is 333346165001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44115961444 + 56445681889 = 210038^2 + 237583^2 .

It is a cyclic number.

It is not a de Polignac number, because 100561643333 - 2³⁰ = 99487901509 is a prime.

It is a super-2 number, since 2×100561643333² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100561643293 and 100561643302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100561643323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26785988 + ... + 26789741.

It is an arithmetic number, because the mean of its divisors is an integer number (25153805235).

Almost surely, 2^100561643333 is an apocalyptic number.

It is an amenable number.

100561643333 is a deficient number, since it is larger than the sum of its proper divisors (53577607).

100561643333 is an equidigital number, since it uses as much as digits as its factorization.

100561643333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53577606.

The product of its (nonzero) digits is 58320, while the sum is 35.

The spelling of 100561643333 in words is "one hundred billion, five hundred sixty-one million, six hundred forty-three thousand, three hundred thirty-three".