206544605351612 has 24 divisors (see below), whose sum is σ = 394318624188720. Its totient is φ = 93882436335360.

The previous prime is 206544605351611. The next prime is 206544605351633. The reversal of 206544605351612 is 216153506445602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206544605351611) 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 7 ways as a sum of consecutive naturals, for example, 34045187 + ... + 39650522.

It is an arithmetic number, because the mean of its divisors is an integer number (16429942674530).

Almost surely, 2^{206544605351612} is an apocalyptic number.

206544605351612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206544605351612 is a deficient number, since it is larger than the sum of its proper divisors (187774018837108).

206544605351612 is a wasteful number, since it uses less digits than its factorization.

206544605351612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73759421 (or 73759419 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 206544605351612 in words is "two hundred six trillion, five hundred forty-four billion, six hundred five million, three hundred fifty-one thousand, six hundred twelve".