20146311466 has 8 divisors (see below), whose sum is σ = 30224066400. Its totient is φ = 10071622668.

The previous prime is 20146311463. The next prime is 20146311467. The reversal of 20146311466 is 66411364102.

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

It is not an unprimeable number, because it can be changed into a prime (20146311463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750036 + ... + 776431.

It is an arithmetic number, because the mean of its divisors is an integer number (3778008300).

Almost surely, 2^20146311466 is an apocalyptic number.

20146311466 is a deficient number, since it is larger than the sum of its proper divisors (10077754934).

20146311466 is a wasteful number, since it uses less digits than its factorization.

20146311466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533068.

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 20146311466 its reverse (66411364102), we get a palindrome (86557675568).

The spelling of 20146311466 in words is "twenty billion, one hundred forty-six million, three hundred eleven thousand, four hundred sixty-six".