201071501064 has 64 divisors (see below), whose sum is σ = 638322230400. Its totient is φ = 57448999872.

The previous prime is 201071501063. The next prime is 201071501087. The reversal of 201071501064 is 460105170102.

It is a happy number.

201071501064 is a `hidden beast` number, since 20 + 10 + 71 + 501 + 0 + 64 = 666.

201071501064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (201071501063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66490387 + ... + 66493410.

It is an arithmetic number, because the mean of its divisors is an integer number (9973784850).

Almost surely, 2^201071501064 is an apocalyptic number.

201071501064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201071501064 is an abundant number, since it is smaller than the sum of its proper divisors (437250729336).

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

201071501064 is a wasteful number, since it uses less digits than its factorization.

201071501064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132983819 (or 132983809 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

Adding to 201071501064 its reverse (460105170102), we get a palindrome (661176671166).

The spelling of 201071501064 in words is "two hundred one billion, seventy-one million, five hundred one thousand, sixty-four".