201501291180 has 192 divisors, whose sum is σ = 658796544000. Its totient is φ = 45067954176.

The previous prime is 201501291161. The next prime is 201501291221. The reversal of 201501291180 is 81192105102.

201501291180 is digitally balanced in base 3, 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 (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3867946 + ... + 3919694.

It is an arithmetic number, because the mean of its divisors is an integer number (3431232000).

Almost surely, 2^201501291180 is an apocalyptic number.

201501291180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201501291180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329398272000).

201501291180 is an abundant number, since it is smaller than the sum of its proper divisors (457295252820).

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

201501291180 is a wasteful number, since it uses less digits than its factorization.

201501291180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51968 (or 51966 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 30.

Adding to 201501291180 its reverse (81192105102), we get a palindrome (282693396282).

The spelling of 201501291180 in words is "two hundred one billion, five hundred one million, two hundred ninety-one thousand, one hundred eighty".