21200446234366 has 16 divisors (see below), whose sum is σ = 36349950587904. Its totient is φ = 9084323411064.

The previous prime is 21200446234327. The next prime is 21200446234381. The reversal of 21200446234366 is 66343264400212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131759890 + ... + 131920693.

It is an arithmetic number, because the mean of its divisors is an integer number (2271871911744).

Almost surely, 2^{21200446234366} is an apocalyptic number.

21200446234366 is a deficient number, since it is larger than the sum of its proper divisors (15149504353538).

21200446234366 is a wasteful number, since it uses less digits than its factorization.

21200446234366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263686335.

The product of its (nonzero) digits is 995328, while the sum is 43.

The spelling of 21200446234366 in words is "twenty-one trillion, two hundred billion, four hundred forty-six million, two hundred thirty-four thousand, three hundred sixty-six".