612144524220 has 24 divisors (see below), whose sum is σ = 1714004667984. Its totient is φ = 163238539776.

The previous prime is 612144524219. The next prime is 612144524231. The reversal of 612144524220 is 22425441216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5101204309 + ... + 5101204428.

It is an arithmetic number, because the mean of its divisors is an integer number (71416861166).

Almost surely, 2^612144524220 is an apocalyptic number.

612144524220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

612144524220 is an abundant number, since it is smaller than the sum of its proper divisors (1101860143764).

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

612144524220 is a wasteful number, since it uses less digits than its factorization.

612144524220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10202408749 (or 10202408747 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 612144524220 its reverse (22425441216), we get a palindrome (634569965436).

The spelling of 612144524220 in words is "six hundred twelve billion, one hundred forty-four million, five hundred twenty-four thousand, two hundred twenty".