206021436651662 has 8 divisors (see below), whose sum is σ = 309283605066600. Its totient is φ = 102926901629464.

The previous prime is 206021436651637. The next prime is 206021436651689. The reversal of 206021436651662 is 266156634120602.

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

It is a self number, because there is not a number n which added to its sum of digits gives 206021436651662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41908345112 + ... + 41908350027.

It is an arithmetic number, because the mean of its divisors is an integer number (38660450633325).

Almost surely, 2^{206021436651662} is an apocalyptic number.

206021436651662 is a deficient number, since it is larger than the sum of its proper divisors (103262168414938).

206021436651662 is a wasteful number, since it uses less digits than its factorization.

206021436651662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83816696370.

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 206021436651662 in words is "two hundred six trillion, twenty-one billion, four hundred thirty-six million, six hundred fifty-one thousand, six hundred sixty-two".