21104644522410 has 64 divisors (see below), whose sum is σ = 56446052457600. Its totient is φ = 5611205166336.

The previous prime is 21104644522373. The next prime is 21104644522483. The reversal of 21104644522410 is 1422544640112.

21104644522410 is a `hidden beast` number, since 2 + 1 + 1 + 0 + 4 + 644 + 5 + 2 + 2 + 4 + 1 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115881340 + ... + 116063319.

It is an arithmetic number, because the mean of its divisors is an integer number (881969569650).

Almost surely, 2^{21104644522410} is an apocalyptic number.

21104644522410 is an abundant number, since it is smaller than the sum of its proper divisors (35341407935190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21104644522410 is a wasteful number, since it uses less digits than its factorization.

21104644522410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231945012 (or 231945006 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The spelling of 21104644522410 in words is "twenty-one trillion, one hundred four billion, six hundred forty-four million, five hundred twenty-two thousand, four hundred ten".