201001716 has 48 divisors (see below), whose sum is σ = 526303680. Its totient is φ = 66333600.

The previous prime is 201001699. The next prime is 201001729. The reversal of 201001716 is 617100102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1695 + ... + 20121.

It is an arithmetic number, because the mean of its divisors is an integer number (10964660).

Almost surely, 2^201001716 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 201001716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263151840).

201001716 is an abundant number, since it is smaller than the sum of its proper divisors (325301964).

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

201001716 is a wasteful number, since it uses less digits than its factorization.

201001716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18541 (or 18533 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 201001716 is about 14177.5073972825. The cubic root of 201001716 is about 585.7782672465.

Adding to 201001716 its reverse (617100102), we get a palindrome (818101818).

The spelling of 201001716 in words is "two hundred one million, one thousand, seven hundred sixteen".