20117127146 has 8 divisors (see below), whose sum is σ = 31487677344. Its totient is φ = 9621234700.

The previous prime is 20117127127. The next prime is 20117127179. The reversal of 20117127146 is 64172171102.

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

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, 218664380 + ... + 218664471.

It is an arithmetic number, because the mean of its divisors is an integer number (3935959668).

Almost surely, 2^20117127146 is an apocalyptic number.

20117127146 is a deficient number, since it is larger than the sum of its proper divisors (11370550198).

20117127146 is a wasteful number, since it uses less digits than its factorization.

20117127146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437328876.

The product of its (nonzero) digits is 4704, while the sum is 32.

Adding to 20117127146 its reverse (64172171102), we get a palindrome (84289298248).

The spelling of 20117127146 in words is "twenty billion, one hundred seventeen million, one hundred twenty-seven thousand, one hundred forty-six".