201602121570072 has 80 divisors (see below), whose sum is σ = 564682914446640. Its totient is φ = 67199480760384.

The previous prime is 201602121570013. The next prime is 201602121570079. The reversal of 201602121570072 is 270075121206102.

201602121570072 is a `hidden beast` number, since 2 + 0 + 1 + 6 + 0 + 2 + 12 + 1 + 570 + 0 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201602121570079) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33044493 + ... + 38667075.

It is an arithmetic number, because the mean of its divisors is an integer number (7058536430583).

Almost surely, 2^{201602121570072} is an apocalyptic number.

It is an amenable number.

201602121570072 is an abundant number, since it is smaller than the sum of its proper divisors (363080792876568).

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

201602121570072 is a wasteful number, since it uses less digits than its factorization.

201602121570072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5677934 (or 5677921 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

Adding to 201602121570072 its reverse (270075121206102), we get a palindrome (471677242776174).

The spelling of 201602121570072 in words is "two hundred one trillion, six hundred two billion, one hundred twenty-one million, five hundred seventy thousand, seventy-two".