206601461989656 has 32 divisors (see below), whose sum is σ = 516507093944640. Its totient is φ = 68866695467168.

The previous prime is 206601461989649. The next prime is 206601461989691. The reversal of 206601461989656 is 656989164106602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24968706 + ... + 32196881.

It is an arithmetic number, because the mean of its divisors is an integer number (16140846685770).

Almost surely, 2^{206601461989656} is an apocalyptic number.

It is an amenable number.

206601461989656 is an abundant number, since it is smaller than the sum of its proper divisors (309905631954984).

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

206601461989656 is a wasteful number, since it uses less digits than its factorization.

206601461989656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57316183 (or 57316179 counting only the distinct ones).

The product of its (nonzero) digits is 201553920, while the sum is 69.

The spelling of 206601461989656 in words is "two hundred six trillion, six hundred one billion, four hundred sixty-one million, nine hundred eighty-nine thousand, six hundred fifty-six".