211601261160 has 96 divisors (see below), whose sum is σ = 694131366240. Its totient is φ = 55899637632.

The previous prime is 211601261147. The next prime is 211601261167. The reversal of 211601261160 is 61162106112.

211601261160 is a `hidden beast` number, since 21 + 1 + 601 + 26 + 1 + 16 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (211601261167) 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, 2708122 + ... + 2785161.

It is an arithmetic number, because the mean of its divisors is an integer number (7230535065).

Almost surely, 2^211601261160 is an apocalyptic number.

211601261160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211601261160 is an abundant number, since it is smaller than the sum of its proper divisors (482530105080).

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

211601261160 is a wasteful number, since it uses less digits than its factorization.

211601261160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493407 (or 5493400 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

Adding to 211601261160 its reverse (61162106112), we get a palindrome (272763367272).

The spelling of 211601261160 in words is "two hundred eleven billion, six hundred one million, two hundred sixty-one thousand, one hundred sixty".