106066500021 has 24 divisors (see below), whose sum is σ = 156608674560. Its totient is φ = 69143800416.

The previous prime is 106066500017. The next prime is 106066500041. The reversal of 106066500021 is 120005660601.

It is a happy number.

106066500021 is a `hidden beast` number, since 1 + 0 + 6 + 0 + 6 + 650 + 0 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 106066500021 - 2² = 106066500017 is a prime.

It is a super-2 number, since 2×106066500021² (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 (106066500041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356056 + ... + 582158.

It is an arithmetic number, because the mean of its divisors is an integer number (6525361440).

Almost surely, 2^106066500021 is an apocalyptic number.

It is an amenable number.

106066500021 is a deficient number, since it is larger than the sum of its proper divisors (50542174539).

106066500021 is a wasteful number, since it uses less digits than its factorization.

106066500021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227265 (or 227262 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 106066500021 in words is "one hundred six billion, sixty-six million, five hundred thousand, twenty-one".