206601660463 has 8 divisors (see below), whose sum is σ = 225963026640. Its totient is φ = 187336860480.

The previous prime is 206601660439. The next prime is 206601660469. The reversal of 206601660463 is 364066106602.

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

It is not a de Polignac number, because 206601660463 - 2¹⁷ = 206601529391 is a prime.

It is a super-2 number, since 2×206601660463² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206601660469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24137070 + ... + 24145627.

It is an arithmetic number, because the mean of its divisors is an integer number (28245378330).

Almost surely, 2^206601660463 is an apocalyptic number.

206601660463 is a deficient number, since it is larger than the sum of its proper divisors (19361366177).

206601660463 is a wasteful number, since it uses less digits than its factorization.

206601660463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48283097.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 206601660463 in words is "two hundred six billion, six hundred one million, six hundred sixty thousand, four hundred sixty-three".