5220156612 has 96 divisors (see below), whose sum is σ = 14089832064. Its totient is φ = 1486643200.

The previous prime is 5220156593. The next prime is 5220156649. The reversal of 5220156612 is 2166510225.

It is a self number, because there is not a number n which added to its sum of digits gives 5220156612.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2137312 + ... + 2139752.

It is an arithmetic number, because the mean of its divisors is an integer number (146769084).

Almost surely, 2^5220156612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5220156612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7044916032).

5220156612 is an abundant number, since it is smaller than the sum of its proper divisors (8869675452).

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

5220156612 is a wasteful number, since it uses less digits than its factorization.

5220156612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429 (or 3427 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 5220156612 is about 72250.6512911821. The cubic root of 5220156612 is about 1734.7138431854.

Adding to 5220156612 its reverse (2166510225), we get a palindrome (7386666837).

The spelling of 5220156612 in words is "five billion, two hundred twenty million, one hundred fifty-six thousand, six hundred twelve".