21034501166050 has 24 divisors (see below), whose sum is σ = 39202577370000. Its totient is φ = 8396939132880.

The previous prime is 21034501166033. The next prime is 21034501166053. The reversal of 21034501166050 is 5066110543012.

It is a junction number, because it is equal to n+sod(n) for n = 21034501165997 and 21034501166015.

It is not an unprimeable number, because it can be changed into a prime (21034501166053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421508140 + ... + 421558039.

It is an arithmetic number, because the mean of its divisors is an integer number (1633440723750).

Almost surely, 2^{21034501166050} is an apocalyptic number.

21034501166050 is a deficient number, since it is larger than the sum of its proper divisors (18168076203950).

21034501166050 is a wasteful number, since it uses less digits than its factorization.

21034501166050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843066690 (or 843066685 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 21034501166050 in words is "twenty-one trillion, thirty-four billion, five hundred one million, one hundred sixty-six thousand, fifty".