201860531568 has 140 divisors (see below), whose sum is σ = 591872852088. Its totient is φ = 66657582720.

The previous prime is 201860531567. The next prime is 201860531597. The reversal of 201860531568 is 865135068102.

201860531568 is a `hidden beast` number, since 2 + 0 + 1 + 8 + 60 + 531 + 56 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201860531563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1167178 + ... + 1328918.

Almost surely, 2^201860531568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201860531568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295936426044).

201860531568 is an abundant number, since it is smaller than the sum of its proper divisors (390012320520).

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

201860531568 is a wasteful number, since it uses less digits than its factorization.

201860531568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161874 (or 161853 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 201860531568 in words is "two hundred one billion, eight hundred sixty million, five hundred thirty-one thousand, five hundred sixty-eight".