206994357604403 has 8 divisors (see below), whose sum is σ = 207269566184448. Its totient is φ = 206719331830984.

The previous prime is 206994357604399. The next prime is 206994357604469. The reversal of 206994357604403 is 304406753499602.

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 206994357604403 - 2² = 206994357604399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206994357604303) 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, 43435451 + ... + 47964852.

It is an arithmetic number, because the mean of its divisors is an integer number (25908695773056).

Almost surely, 2^{206994357604403} is an apocalyptic number.

206994357604403 is a deficient number, since it is larger than the sum of its proper divisors (275208580045).

206994357604403 is a wasteful number, since it uses less digits than its factorization.

206994357604403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91403313.

The product of its (nonzero) digits is 117573120, while the sum is 62.

The spelling of 206994357604403 in words is "two hundred six trillion, nine hundred ninety-four billion, three hundred fifty-seven million, six hundred four thousand, four hundred three".