20346320250666 has 48 divisors (see below), whose sum is σ = 44362271274048. Its totient is φ = 6739275436800.

The previous prime is 20346320250623. The next prime is 20346320250689. The reversal of 20346320250666 is 66605202364302.

It is a super-3 number, since 3×20346320250666³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8028361 + ... + 10254131.

It is an arithmetic number, because the mean of its divisors is an integer number (924213984876).

Almost surely, 2^{20346320250666} is an apocalyptic number.

20346320250666 is an abundant number, since it is smaller than the sum of its proper divisors (24015951023382).

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

20346320250666 is a wasteful number, since it uses less digits than its factorization.

20346320250666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228987 (or 2228984 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 45.

The spelling of 20346320250666 in words is "twenty trillion, three hundred forty-six billion, three hundred twenty million, two hundred fifty thousand, six hundred sixty-six".