1010444661 has 12 divisors (see below), whose sum is σ = 1468487488. Its totient is φ = 669496104.

The previous prime is 1010444647. The next prime is 1010444683. The reversal of 1010444661 is 1664440101.

It is a de Polignac number, because none of the positive numbers 2^k-1010444661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010444641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342925 + ... + 345858.

Almost surely, 2^1010444661 is an apocalyptic number.

It is an amenable number.

1010444661 is a deficient number, since it is larger than the sum of its proper divisors (458042827).

1010444661 is a wasteful number, since it uses less digits than its factorization.

1010444661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688952 (or 688949 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1010444661 is about 31787.4922099872. The cubic root of 1010444661 is about 1003.4695022991.

Adding to 1010444661 its reverse (1664440101), we get a palindrome (2674884762).

The spelling of 1010444661 in words is "one billion, ten million, four hundred forty-four thousand, six hundred sixty-one".