206404152503 has 8 divisors (see below), whose sum is σ = 207919692288. Its totient is φ = 204891941464.

The previous prime is 206404152473. The next prime is 206404152523. The reversal of 206404152503 is 305251404602.

206404152503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206404152503 - 2¹⁴ = 206404136119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206404152503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206404152523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707651 + ... + 955812.

It is an arithmetic number, because the mean of its divisors is an integer number (25989961536).

Almost surely, 2^206404152503 is an apocalyptic number.

206404152503 is a deficient number, since it is larger than the sum of its proper divisors (1515539785).

206404152503 is a wasteful number, since it uses less digits than its factorization.

206404152503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664373.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 206404152503 in words is "two hundred six billion, four hundred four million, one hundred fifty-two thousand, five hundred three".