20017342766 has 8 divisors (see below), whose sum is σ = 30026800344. Its totient is φ = 10008409320.

The previous prime is 20017342739. The next prime is 20017342777. The reversal of 20017342766 is 66724371002.

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

It is a super-3 number, since 3×20017342766³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

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, 15005 + ... + 200648.

It is an arithmetic number, because the mean of its divisors is an integer number (3753350043).

Almost surely, 2^20017342766 is an apocalyptic number.

20017342766 is a deficient number, since it is larger than the sum of its proper divisors (10009457578).

20017342766 is a wasteful number, since it uses less digits than its factorization.

20017342766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262066.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 20017342766 in words is "twenty billion, seventeen million, three hundred forty-two thousand, seven hundred sixty-six".