201520152005 has 8 divisors (see below), whose sum is σ = 242146189824. Its totient is φ = 161001450000.

The previous prime is 201520151981. The next prime is 201520152017. The reversal of 201520152005 is 500251025102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201520152005 - 2³⁴ = 184340282821 is a prime.

It is a super-2 number, since 2×201520152005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26829821 + ... + 26837330.

It is an arithmetic number, because the mean of its divisors is an integer number (30268273728).

Almost surely, 2^201520152005 is an apocalyptic number.

It is an amenable number.

201520152005 is a deficient number, since it is larger than the sum of its proper divisors (40626037819).

201520152005 is an equidigital number, since it uses as much as digits as its factorization.

201520152005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53667907.

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 201520152005 its reverse (500251025102), we get a palindrome (701771177107).

The spelling of 201520152005 in words is "two hundred one billion, five hundred twenty million, one hundred fifty-two thousand, five".