1053220660 has 48 divisors (see below), whose sum is σ = 2308884480. Its totient is φ = 403096320.

The previous prime is 1053220657. The next prime is 1053220709. The reversal of 1053220660 is 660223501.

It is a super-2 number, since 2×1053220660² = 2218547517301671200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 45637 + ... + 64723.

It is an arithmetic number, because the mean of its divisors is an integer number (48101760).

Almost surely, 2^1053220660 is an apocalyptic number.

1053220660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1053220660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154442240).

1053220660 is an abundant number, since it is smaller than the sum of its proper divisors (1255663820).

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

1053220660 is a wasteful number, since it uses less digits than its factorization.

1053220660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19216 (or 19214 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1053220660 is about 32453.3613051098. The cubic root of 1053220660 is about 1017.4344920166.

The spelling of 1053220660 in words is "one billion, fifty-three million, two hundred twenty thousand, six hundred sixty".