206739045445816 has 32 divisors (see below), whose sum is σ = 418656878846640. Its totient is φ = 95143041070848.

The previous prime is 206739045445811. The next prime is 206739045445897. The reversal of 206739045445816 is 618544540937602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206739045445811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2864337741 + ... + 2864409916.

It is a 1-persistent number, because it is pandigital, but 2⋅206739045445816 = 413478090891632 is not.

Almost surely, 2^{206739045445816} is an apocalyptic number.

206739045445816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

206739045445816 is an abundant number, since it is smaller than the sum of its proper divisors (211917833400824).

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

206739045445816 is a wasteful number, since it uses less digits than its factorization.

206739045445816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728748023 (or 5728748019 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 64.

The spelling of 206739045445816 in words is "two hundred six trillion, seven hundred thirty-nine billion, forty-five million, four hundred forty-five thousand, eight hundred sixteen".