201560220072 has 32 divisors (see below), whose sum is σ = 559889500800. Its totient is φ = 67186739952.

The previous prime is 201560219969. The next prime is 201560220107. The reversal of 201560220072 is 270022065102.

201560220072 is a `hidden beast` number, since 20 + 15 + 602 + 20 + 0 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466574368 + ... + 466574799.

It is an arithmetic number, because the mean of its divisors is an integer number (17496546900).

Almost surely, 2^201560220072 is an apocalyptic number.

It is an amenable number.

201560220072 is an abundant number, since it is smaller than the sum of its proper divisors (358329280728).

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

201560220072 is a wasteful number, since it uses less digits than its factorization.

201560220072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933149182 (or 933149172 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 201560220072 its reverse (270022065102), we get a palindrome (471582285174).

The spelling of 201560220072 in words is "two hundred one billion, five hundred sixty million, two hundred twenty thousand, seventy-two".