1084066661 has 8 divisors (see below), whose sum is σ = 1122807000. Its totient is φ = 1046661504.

The previous prime is 1084066651. The next prime is 1084066667. The reversal of 1084066661 is 1666604801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60450625 + 1023616036 = 7775^2 + 31994^2 .

It is not a de Polignac number, because 1084066661 - 2⁶ = 1084066597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1084066667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2165 + ... + 46613.

It is an arithmetic number, because the mean of its divisors is an integer number (140350875).

Almost surely, 2^1084066661 is an apocalyptic number.

It is an amenable number.

1084066661 is a deficient number, since it is larger than the sum of its proper divisors (38740339).

1084066661 is an frugal number, since it uses more digits than its factorization.

1084066661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44536 (or 44478 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1084066661 is about 32925.1675925879. The cubic root of 1084066661 is about 1027.2717129285.

The spelling of 1084066661 in words is "one billion, eighty-four million, sixty-six thousand, six hundred sixty-one".