12620335146 has 16 divisors (see below), whose sum is σ = 25250180544. Its totient is φ = 4205193344.

The previous prime is 12620335127. The next prime is 12620335151. The reversal of 12620335146 is 64153302621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378951 + ... + 410906.

It is an arithmetic number, because the mean of its divisors is an integer number (1578136284).

Almost surely, 2^12620335146 is an apocalyptic number.

12620335146 is an abundant number, since it is smaller than the sum of its proper divisors (12629845398).

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

12620335146 is a wasteful number, since it uses less digits than its factorization.

12620335146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792525.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 12620335146 its reverse (64153302621), we get a palindrome (76773637767).

The spelling of 12620335146 in words is "twelve billion, six hundred twenty million, three hundred thirty-five thousand, one hundred forty-six".