206121062516 has 24 divisors (see below), whose sum is σ = 361256462784. Its totient is φ = 102905042240.

The previous prime is 206121062513. The next prime is 206121062551. The reversal of 206121062516 is 615260121602.

206121062516 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206121062513) 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 7 ways as a sum of consecutive naturals, for example, 8247896 + ... + 8272848.

It is an arithmetic number, because the mean of its divisors is an integer number (15052352616).

Almost surely, 2^206121062516 is an apocalyptic number.

It is an amenable number.

206121062516 is a deficient number, since it is larger than the sum of its proper divisors (155135400268).

206121062516 is a wasteful number, since it uses less digits than its factorization.

206121062516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27991 (or 27989 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 206121062516 in words is "two hundred six billion, one hundred twenty-one million, sixty-two thousand, five hundred sixteen".