1620143365226 has 16 divisors (see below), whose sum is σ = 2515280977440. Its totient is φ = 781744493040.

The previous prime is 1620143365207. The next prime is 1620143365271. The reversal of 1620143365226 is 6225633410261.

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, 6913820 + ... + 7144311.

It is an arithmetic number, because the mean of its divisors is an integer number (157205061090).

Almost surely, 2^{1620143365226} is an apocalyptic number.

1620143365226 is a deficient number, since it is larger than the sum of its proper divisors (895137612214).

1620143365226 is a wasteful number, since it uses less digits than its factorization.

1620143365226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14060149.

The product of its (nonzero) digits is 311040, while the sum is 41.

Adding to 1620143365226 its reverse (6225633410261), we get a palindrome (7845776775487).

The spelling of 1620143365226 in words is "one trillion, six hundred twenty billion, one hundred forty-three million, three hundred sixty-five thousand, two hundred twenty-six".