106606166505 has 16 divisors (see below), whose sum is σ = 171172593600. Its totient is φ = 56655713088.

The previous prime is 106606166479. The next prime is 106606166509. The reversal of 106606166505 is 505661606601.

It is not a de Polignac number, because 106606166505 - 2¹⁰ = 106606165481 is a prime.

It is a super-2 number, since 2×106606166505² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106606166509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12552430 + ... + 12560919.

It is an arithmetic number, because the mean of its divisors is an integer number (10698287100).

Almost surely, 2^106606166505 is an apocalyptic number.

106606166505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106606166505 is a deficient number, since it is larger than the sum of its proper divisors (64566427095).

106606166505 is a wasteful number, since it uses less digits than its factorization.

106606166505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25113640.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 106606166505 in words is "one hundred six billion, six hundred six million, one hundred sixty-six thousand, five hundred five".