21150036200145 has 8 divisors (see below), whose sum is σ = 33840057920256. Its totient is φ = 11280019306736.

The previous prime is 21150036200087. The next prime is 21150036200191. The reversal of 21150036200145 is 54100263005112.

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

It is a cyclic number.

It is not a de Polignac number, because 21150036200145 - 2¹⁰ = 21150036199121 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 705001206657 + ... + 705001206686.

It is an arithmetic number, because the mean of its divisors is an integer number (4230007240032).

Almost surely, 2^{21150036200145} is an apocalyptic number.

It is an amenable number.

21150036200145 is a deficient number, since it is larger than the sum of its proper divisors (12690021720111).

21150036200145 is a wasteful number, since it uses less digits than its factorization.

21150036200145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410002413351.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 21150036200145 its reverse (54100263005112), we get a palindrome (75250299205257).

The spelling of 21150036200145 in words is "twenty-one trillion, one hundred fifty billion, thirty-six million, two hundred thousand, one hundred forty-five".