1065521464 has 48 divisors (see below), whose sum is σ = 2352105000. Its totient is φ = 451136448.

The previous prime is 1065521459. The next prime is 1065521503. The reversal of 1065521464 is 4641255601.

It is a super-2 number, since 2×1065521464² = 2270671980489406592, 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 11 ways as a sum of consecutive naturals, for example, 16162 + ... + 48910.

Almost surely, 2^1065521464 is an apocalyptic number.

1065521464 is a gapful number since it is divisible by the number (14) 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 1065521464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1176052500).

1065521464 is an abundant number, since it is smaller than the sum of its proper divisors (1286583536).

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

1065521464 is a wasteful number, since it uses less digits than its factorization.

1065521464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32852 (or 32841 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1065521464 is about 32642.3262651423. The cubic root of 1065521464 is about 1021.3801207508.

The spelling of 1065521464 in words is "one billion, sixty-five million, five hundred twenty-one thousand, four hundred sixty-four".