1081883664 has 45 divisors (see below), whose sum is σ = 3028876669. Its totient is φ = 360496320.

The previous prime is 1081883659. The next prime is 1081883711. The reversal of 1081883664 is 4663881801.

It is a happy number.

The square root of 1081883664 is 32892.

It is a perfect power (a square), and thus also a powerful number.

1081883664 is a `hidden beast` number, since 108 + 188 + 366 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 320123664 + 761760000 = 17892^2 + 27600^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 393334 + ... + 396074.

Almost surely, 2^1081883664 is an apocalyptic number.

1081883664 is the 32892-nd square number.

It is an amenable number.

1081883664 is an abundant number, since it is smaller than the sum of its proper divisors (1946993005).

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

1081883664 is an frugal number, since it uses more digits than its factorization.

1081883664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496 (or 2746 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The cubic root of 1081883664 is about 1026.5817067680.

The spelling of 1081883664 in words is "one billion, eighty-one million, eight hundred eighty-three thousand, six hundred sixty-four".