20411215603166 has 8 divisors (see below), whose sum is σ = 30819583825104. Its totient is φ = 10138020994800.

The previous prime is 20411215603153. The next prime is 20411215603183. The reversal of 20411215603166 is 66130651211402.

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

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, 33793403015 + ... + 33793403618.

It is an arithmetic number, because the mean of its divisors is an integer number (3852447978138).

Almost surely, 2^{20411215603166} is an apocalyptic number.

20411215603166 is a deficient number, since it is larger than the sum of its proper divisors (10408368221938).

20411215603166 is a wasteful number, since it uses less digits than its factorization.

20411215603166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67586806786.

The product of its (nonzero) digits is 51840, while the sum is 38.

Adding to 20411215603166 its reverse (66130651211402), we get a palindrome (86541866814568).

The spelling of 20411215603166 in words is "twenty trillion, four hundred eleven billion, two hundred fifteen million, six hundred three thousand, one hundred sixty-six".