7220689698144 has 768 divisors, whose sum is σ = 22914478540800. Its totient is φ = 1969348018176.

The previous prime is 7220689698143. The next prime is 7220689698197. The reversal of 7220689698144 is 4418969860227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220689698143) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4493272189 + ... + 4493273795.

It is an arithmetic number, because the mean of its divisors is an integer number (29836560600).

Almost surely, 2^{7220689698144} 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 7220689698144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11457239270400).

7220689698144 is an abundant number, since it is smaller than the sum of its proper divisors (15693788842656).

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

7220689698144 is a wasteful number, since it uses less digits than its factorization.

7220689698144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855 (or 1847 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 66.

The spelling of 7220689698144 in words is "seven trillion, two hundred twenty billion, six hundred eighty-nine million, six hundred ninety-eight thousand, one hundred forty-four".