20162101264566 has 8 divisors (see below), whose sum is σ = 40324202529144. Its totient is φ = 6720700421520.

The previous prime is 20162101264561. The next prime is 20162101264567. The reversal of 20162101264566 is 66546210126102.

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

20162101264566 is an admirable number.

It is a super-2 number, since 2×20162101264566² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20162101264561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680175105375 + ... + 1680175105386.

It is an arithmetic number, because the mean of its divisors is an integer number (5040525316143).

Almost surely, 2^{20162101264566} is an apocalyptic number.

20162101264566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20162101264566 is a wasteful number, since it uses less digits than its factorization.

20162101264566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360350210766.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 20162101264566 in words is "twenty trillion, one hundred sixty-two billion, one hundred one million, two hundred sixty-four thousand, five hundred sixty-six".