106020661055 has 4 divisors (see below), whose sum is σ = 127224793272. Its totient is φ = 84816528840.

The previous prime is 106020661039. The next prime is 106020661081. The reversal of 106020661055 is 550166020601.

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

It is not a de Polignac number, because 106020661055 - 2⁴ = 106020661039 is a prime.

It is a super-2 number, since 2×106020661055² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10602066101 + ... + 10602066110.

It is an arithmetic number, because the mean of its divisors is an integer number (31806198318).

Almost surely, 2^106020661055 is an apocalyptic number.

106020661055 is a deficient number, since it is larger than the sum of its proper divisors (21204132217).

106020661055 is an equidigital number, since it uses as much as digits as its factorization.

106020661055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21204132216.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 106020661055 its reverse (550166020601), we get a palindrome (656186681656).

The spelling of 106020661055 in words is "one hundred six billion, twenty million, six hundred sixty-one thousand, fifty-five".