206440699799604 has 96 divisors (see below), whose sum is σ = 501169676192640. Its totient is φ = 66058909862400.

The previous prime is 206440699799539. The next prime is 206440699799629. The reversal of 206440699799604 is 406997996044602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284532414 + ... + 285257034.

It is an arithmetic number, because the mean of its divisors is an integer number (5220517460340).

Almost surely, 2^{206440699799604} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206440699799604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250584838096320).

206440699799604 is an abundant number, since it is smaller than the sum of its proper divisors (294728976393036).

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

206440699799604 is a wasteful number, since it uses less digits than its factorization.

206440699799604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729361 (or 729359 counting only the distinct ones).

The product of its (nonzero) digits is 1269789696, while the sum is 75.

The spelling of 206440699799604 in words is "two hundred six trillion, four hundred forty billion, six hundred ninety-nine million, seven hundred ninety-nine thousand, six hundred four".