10100555005561 has 8 divisors (see below), whose sum is σ = 10138506713024. Its totient is φ = 10062614000880.

The previous prime is 10100555005537. The next prime is 10100555005637. The reversal of 10100555005561 is 16550055500101.

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

It is a cyclic number.

It is not a de Polignac number, because 10100555005561 - 2²⁵ = 10100521451129 is a prime.

It is a super-3 number, since 3×10100555005561³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10100555005501) 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, 782175 + ... + 4562116.

It is an arithmetic number, because the mean of its divisors is an integer number (1267313339128).

Almost surely, 2^{10100555005561} is an apocalyptic number.

It is an amenable number.

10100555005561 is a deficient number, since it is larger than the sum of its proper divisors (37951707463).

10100555005561 is an equidigital number, since it uses as much as digits as its factorization.

10100555005561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351391.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 10100555005561 in words is "ten trillion, one hundred billion, five hundred fifty-five million, five thousand, five hundred sixty-one".