660106205 has 16 divisors (see below), whose sum is σ = 872702208. Its totient is φ = 475320000.

The previous prime is 660106199. The next prime is 660106229. The reversal of 660106205 is 502601066.

It is not a de Polignac number, because 660106205 - 2¹² = 660102109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53861 + ... + 64970.

It is an arithmetic number, because the mean of its divisors is an integer number (54543888).

Almost surely, 2^660106205 is an apocalyptic number.

It is an amenable number.

660106205 is a deficient number, since it is larger than the sum of its proper divisors (212596003).

660106205 is a wasteful number, since it uses less digits than its factorization.

660106205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118948.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 660106205 is about 25692.5320861919. The cubic root of 660106205 is about 870.7054677816.

The spelling of 660106205 in words is "six hundred sixty million, one hundred six thousand, two hundred five".