206663014656054 has 32 divisors (see below), whose sum is σ = 501001247652480. Its totient is φ = 62625155956200.

The previous prime is 206663014656053. The next prime is 206663014656067. The reversal of 206663014656054 is 450656410366602.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206663014656053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173958765952 + ... + 173958767139.

It is an arithmetic number, because the mean of its divisors is an integer number (15656288989140).

Almost surely, 2^{206663014656054} is an apocalyptic number.

206663014656054 is an abundant number, since it is smaller than the sum of its proper divisors (294338232996426).

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

206663014656054 is a wasteful number, since it uses less digits than its factorization.

206663014656054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347917533113 (or 347917533107 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 54.

The spelling of 206663014656054 in words is "two hundred six trillion, six hundred sixty-three billion, fourteen million, six hundred fifty-six thousand, fifty-four".