20010543215 has 16 divisors (see below), whose sum is σ = 27220821600. Its totient is φ = 13999277952.

The previous prime is 20010543197. The next prime is 20010543221. The reversal of 20010543215 is 51234501002.

It is a cyclic number.

It is not a de Polignac number, because 20010543215 - 2¹² = 20010539119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8100200 + ... + 8102669.

It is an arithmetic number, because the mean of its divisors is an integer number (1701301350).

Almost surely, 2^20010543215 is an apocalyptic number.

20010543215 is a deficient number, since it is larger than the sum of its proper divisors (7210278385).

20010543215 is a wasteful number, since it uses less digits than its factorization.

20010543215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16202906.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 20010543215 in words is "twenty billion, ten million, five hundred forty-three thousand, two hundred fifteen".