206922481845 has 16 divisors (see below), whose sum is σ = 331082318592. Its totient is φ = 110356541120.

The previous prime is 206922481819. The next prime is 206922481903. The reversal of 206922481845 is 548184229602.

It is not a de Polignac number, because 206922481845 - 2²⁹ = 206385610933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975559 + ... + 1168571.

It is an arithmetic number, because the mean of its divisors is an integer number (20692644912).

Almost surely, 2^206922481845 is an apocalyptic number.

It is an amenable number.

206922481845 is a deficient number, since it is larger than the sum of its proper divisors (124159836747).

206922481845 is a wasteful number, since it uses less digits than its factorization.

206922481845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264492.

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 206922481845 in words is "two hundred six billion, nine hundred twenty-two million, four hundred eighty-one thousand, eight hundred forty-five".