106011109561 has 8 divisors (see below), whose sum is σ = 121195081280. Its totient is φ = 90837019728.

The previous prime is 106011109559. The next prime is 106011109609. The reversal of 106011109561 is 165901110601.

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

It is not a de Polignac number, because 106011109561 - 2¹ = 106011109559 is a prime.

It is a super-2 number, since 2×106011109561² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106011109261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2447466 + ... + 2490403.

It is an arithmetic number, because the mean of its divisors is an integer number (15149385160).

Almost surely, 2^106011109561 is an apocalyptic number.

It is an amenable number.

106011109561 is a deficient number, since it is larger than the sum of its proper divisors (15183971719).

106011109561 is an equidigital number, since it uses as much as digits as its factorization.

106011109561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4940943.

The product of its (nonzero) digits is 1620, while the sum is 31.

The spelling of 106011109561 in words is "one hundred six billion, eleven million, one hundred nine thousand, five hundred sixty-one".