20101366 has 8 divisors (see below), whose sum is σ = 30171960. Its totient is φ = 10044048.

The previous prime is 20101351. The next prime is 20101369. The reversal of 20101366 is 66310102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101369) 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, 2530 + ... + 6826.

It is an arithmetic number, because the mean of its divisors is an integer number (3771495).

Almost surely, 2^20101366 is an apocalyptic number.

20101366 is a deficient number, since it is larger than the sum of its proper divisors (10070594).

20101366 is a wasteful number, since it uses less digits than its factorization.

20101366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6638.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 20101366 is about 4483.4546947638. The cubic root of 20101366 is about 271.8995718488.

Adding to 20101366 its reverse (66310102), we get a palindrome (86411468).

The spelling of 20101366 in words is "twenty million, one hundred one thousand, three hundred sixty-six".