1065755220 has 96 divisors (see below), whose sum is σ = 3249590400. Its totient is φ = 259951104.

The previous prime is 1065755219. The next prime is 1065755263. The reversal of 1065755220 is 225575601.

It is a super-2 number, since 2×1065755220² = 2271668377914496800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16942 + ... + 49178.

It is an arithmetic number, because the mean of its divisors is an integer number (33849900).

Almost surely, 2^1065755220 is an apocalyptic number.

1065755220 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 1065755220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624795200).

1065755220 is an abundant number, since it is smaller than the sum of its proper divisors (2183835180).

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

1065755220 is a wasteful number, since it uses less digits than its factorization.

1065755220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32297 (or 32295 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 1065755220 is about 32645.9066346763. The cubic root of 1065755220 is about 1021.4548060207.

The spelling of 1065755220 in words is "one billion, sixty-five million, seven hundred fifty-five thousand, two hundred twenty".