100100550061 has 4 divisors (see below), whose sum is σ = 100131287292. Its totient is φ = 100069812832.

The previous prime is 100100550059. The next prime is 100100550073. The reversal of 100100550061 is 160055001001.

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 80602616836 + 19497933225 = 283906^2 + 139635^2 .

It is a cyclic number.

It is not a de Polignac number, because 100100550061 - 2¹ = 100100550059 is a prime.

It is a super-3 number, since 3×100100550061³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100100550461) 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, 15363730 + ... + 15370243.

It is an arithmetic number, because the mean of its divisors is an integer number (25032821823).

Almost surely, 2^100100550061 is an apocalyptic number.

It is an amenable number.

100100550061 is a deficient number, since it is larger than the sum of its proper divisors (30737231).

100100550061 is an equidigital number, since it uses as much as digits as its factorization.

100100550061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30737230.

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 100100550061 its reverse (160055001001), we get a palindrome (260155551062).

The spelling of 100100550061 in words is "one hundred billion, one hundred million, five hundred fifty thousand, sixty-one".