201061365516 has 144 divisors (see below), whose sum is σ = 591282357120. Its totient is φ = 56930895360.

The previous prime is 201061365509. The next prime is 201061365529. The reversal of 201061365516 is 615563160102.

201061365516 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 6 + 136 + 5 + 516 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 828315 + ... + 1043181.

It is an arithmetic number, because the mean of its divisors is an integer number (4106127480).

Almost surely, 2^201061365516 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 201061365516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295641178560).

201061365516 is an abundant number, since it is smaller than the sum of its proper divisors (390220991604).

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

201061365516 is a wasteful number, since it uses less digits than its factorization.

201061365516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215044 (or 215039 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 201061365516 in words is "two hundred one billion, sixty-one million, three hundred sixty-five thousand, five hundred sixteen".