206655351456 has 48 divisors (see below), whose sum is σ = 542802091104. Its totient is φ = 68842984704.

The previous prime is 206655351443. The next prime is 206655351473. The reversal of 206655351456 is 654153556602.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500350 + ... + 814653.

It is an arithmetic number, because the mean of its divisors is an integer number (11308376898).

Almost surely, 2^206655351456 is an apocalyptic number.

It is an amenable number.

206655351456 is an abundant number, since it is smaller than the sum of its proper divisors (336146739648).

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

206655351456 is a wasteful number, since it uses less digits than its factorization.

206655351456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316653 (or 1316645 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 206655351456 in words is "two hundred six billion, six hundred fifty-five million, three hundred fifty-one thousand, four hundred fifty-six".