21354700570106 has 16 divisors (see below), whose sum is σ = 32148642052800. Its totient is φ = 10638548786208.

The previous prime is 21354700570079. The next prime is 21354700570123. The reversal of 21354700570106 is 60107500745312.

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, 14871500 + ... + 16244103.

It is an arithmetic number, because the mean of its divisors is an integer number (2009290128300).

Almost surely, 2^{21354700570106} is an apocalyptic number.

21354700570106 is a deficient number, since it is larger than the sum of its proper divisors (10793941482694).

21354700570106 is a wasteful number, since it uses less digits than its factorization.

21354700570106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31116853.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 21354700570106 in words is "twenty-one trillion, three hundred fifty-four billion, seven hundred million, five hundred seventy thousand, one hundred six".