42720226660 has 24 divisors (see below), whose sum is σ = 89717596416. Its totient is φ = 17087115360.

The previous prime is 42720226651. The next prime is 42720226663. The reversal of 42720226660 is 6662202724.

It is not an unprimeable number, because it can be changed into a prime (42720226663) by changing a digit.

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, 373869 + ... + 474571.

It is an arithmetic number, because the mean of its divisors is an integer number (3738233184).

Almost surely, 2^42720226660 is an apocalyptic number.

It is an amenable number.

42720226660 is an abundant number, since it is smaller than the sum of its proper divisors (46997369756).

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

42720226660 is a wasteful number, since it uses less digits than its factorization.

42720226660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121923 (or 121921 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 42720226660 in words is "forty-two billion, seven hundred twenty million, two hundred twenty-six thousand, six hundred sixty".