201405452520 has 96 divisors (see below), whose sum is σ = 641849320800. Its totient is φ = 50548810752.

The previous prime is 201405452509. The next prime is 201405452581. The reversal of 201405452520 is 25254504102.

201405452520 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 (30).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2869090 + ... + 2938449.

It is an arithmetic number, because the mean of its divisors is an integer number (6685930425).

Almost surely, 2^201405452520 is an apocalyptic number.

201405452520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201405452520 is an abundant number, since it is smaller than the sum of its proper divisors (440443868280).

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

201405452520 is a wasteful number, since it uses less digits than its factorization.

201405452520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5807587 (or 5807566 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 201405452520 its reverse (25254504102), we get a palindrome (226659956622).

The spelling of 201405452520 in words is "two hundred one billion, four hundred five million, four hundred fifty-two thousand, five hundred twenty".