21363341666104 has 8 divisors (see below), whose sum is σ = 40056265623960. Its totient is φ = 10681670833048.

The previous prime is 21363341666071. The next prime is 21363341666123. The reversal of 21363341666104 is 40166614336312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1335208854124 + ... + 1335208854139.

It is an arithmetic number, because the mean of its divisors is an integer number (5007033202995).

Almost surely, 2^{21363341666104} is an apocalyptic number.

It is an amenable number.

21363341666104 is a deficient number, since it is larger than the sum of its proper divisors (18692923957856).

21363341666104 is a wasteful number, since it uses less digits than its factorization.

21363341666104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670417708269 (or 2670417708265 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 46.

The spelling of 21363341666104 in words is "twenty-one trillion, three hundred sixty-three billion, three hundred forty-one million, six hundred sixty-six thousand, one hundred four".