21150036200146 has 16 divisors (see below), whose sum is σ = 36518048118720. Its totient is φ = 8999090427600.

The previous prime is 21150036200087. The next prime is 21150036200191. The reversal of 21150036200146 is 64100263005112.

It is a happy number.

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, 5434231405 + ... + 5434235296.

It is an arithmetic number, because the mean of its divisors is an integer number (2282378007420).

Almost surely, 2^{21150036200146} is an apocalyptic number.

21150036200146 is a deficient number, since it is larger than the sum of its proper divisors (15368011918574).

21150036200146 is a wasteful number, since it uses less digits than its factorization.

21150036200146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10868466849.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 21150036200146 its reverse (64100263005112), we get a palindrome (85250299205258).

The spelling of 21150036200146 in words is "twenty-one trillion, one hundred fifty billion, thirty-six million, two hundred thousand, one hundred forty-six".