660220152 has 64 divisors (see below), whose sum is σ = 1754887680. Its totient is φ = 206524032.

The previous prime is 660220147. The next prime is 660220153. The reversal of 660220152 is 251022066.

660220152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660220153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17973 + ... + 40539.

It is an arithmetic number, because the mean of its divisors is an integer number (27420120).

Almost surely, 2^660220152 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 660220152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877443840).

660220152 is an abundant number, since it is smaller than the sum of its proper divisors (1094667528).

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

660220152 is a wasteful number, since it uses less digits than its factorization.

660220152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22652 (or 22648 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 660220152 is about 25694.7495025735. The cubic root of 660220152 is about 870.7555650573.

The spelling of 660220152 in words is "six hundred sixty million, two hundred twenty thousand, one hundred fifty-two".