1065562120 has 128 divisors (see below), whose sum is σ = 2837721600. Its totient is φ = 352512000.

The previous prime is 1065562103. The next prime is 1065562129. The reversal of 1065562120 is 212655601.

It is a super-2 number, since 2×1065562120² = 2270845263157788800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1065562129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1159021 + ... + 1159939.

It is an arithmetic number, because the mean of its divisors is an integer number (22169700).

Almost surely, 2^1065562120 is an apocalyptic number.

1065562120 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 1065562120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1418860800).

1065562120 is an abundant number, since it is smaller than the sum of its proper divisors (1772159480).

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

1065562120 is a wasteful number, since it uses less digits than its factorization.

1065562120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1065562120 is about 32642.9490089361. The cubic root of 1065562120 is about 1021.3931111671.

The spelling of 1065562120 in words is "one billion, sixty-five million, five hundred sixty-two thousand, one hundred twenty".