201860660 has 12 divisors (see below), whose sum is σ = 423907428. Its totient is φ = 80744256.

The previous prime is 201860647. The next prime is 201860663. The reversal of 201860660 is 66068102.

It can be written as a sum of positive squares in 2 ways, for example, as 44809636 + 157051024 = 6694^2 + 12532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201860663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5046497 + ... + 5046536.

It is an arithmetic number, because the mean of its divisors is an integer number (35325619).

Almost surely, 2^201860660 is an apocalyptic number.

201860660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201860660 is an abundant number, since it is smaller than the sum of its proper divisors (222046768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201860660 is a wasteful number, since it uses less digits than its factorization.

201860660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10093042 (or 10093040 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 201860660 is about 14207.7675938199. The cubic root of 201860660 is about 586.6114868613.

The spelling of 201860660 in words is "two hundred one million, eight hundred sixty thousand, six hundred sixty".