106606043421 has 8 divisors (see below), whose sum is σ = 143226440544. Its totient is φ = 70528170960.

The previous prime is 106606043417. The next prime is 106606043443. The reversal of 106606043421 is 124340606601.

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

It is not a de Polignac number, because 106606043421 - 2² = 106606043417 is a prime.

It is a super-2 number, since 2×106606043421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106606043471) 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, 135630706 + ... + 135631491.

It is an arithmetic number, because the mean of its divisors is an integer number (17903305068).

Almost surely, 2^106606043421 is an apocalyptic number.

It is an amenable number.

106606043421 is a deficient number, since it is larger than the sum of its proper divisors (36620397123).

106606043421 is a wasteful number, since it uses less digits than its factorization.

106606043421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271262331.

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 106606043421 in words is "one hundred six billion, six hundred six million, forty-three thousand, four hundred twenty-one".