1065605632 has 80 divisors (see below), whose sum is σ = 2620582272. Its totient is φ = 421539840.

The previous prime is 1065605603. The next prime is 1065605669. The reversal of 1065605632 is 2365065601.

It is a super-2 number, since 2×1065605632² = 2271030725900238848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35157 + ... + 58027.

Almost surely, 2^1065605632 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 1065605632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1310291136).

1065605632 is an abundant number, since it is smaller than the sum of its proper divisors (1554976640).

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

1065605632 is an equidigital number, since it uses as much as digits as its factorization.

1065605632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22909 (or 22893 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1065605632 is about 32643.6154860334. The cubic root of 1065605632 is about 1021.4070137672.

The spelling of 1065605632 in words is "one billion, sixty-five million, six hundred five thousand, six hundred thirty-two".