1016050661 has 4 divisors (see below), whose sum is σ = 1016903532. Its totient is φ = 1015197792.

The previous prime is 1016050649. The next prime is 1016050697. The reversal of 1016050661 is 1660506101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1660506101 = 13997 ⋅118633.

It can be written as a sum of positive squares in 2 ways, for example, as 656948161 + 359102500 = 25631^2 + 18950^2 .

It is a cyclic number.

It is not a de Polignac number, because 1016050661 - 2⁶ = 1016050597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1016050661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016050601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424646 + ... + 427031.

It is an arithmetic number, because the mean of its divisors is an integer number (254225883).

Almost surely, 2^1016050661 is an apocalyptic number.

It is an amenable number.

1016050661 is a deficient number, since it is larger than the sum of its proper divisors (852871).

1016050661 is an equidigital number, since it uses as much as digits as its factorization.

1016050661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852870.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1016050661 is about 31875.5495795759. The cubic root of 1016050661 is about 1005.3218480250.

Adding to 1016050661 its reverse (1660506101), we get a palindrome (2676556762).

The spelling of 1016050661 in words is "one billion, sixteen million, fifty thousand, six hundred sixty-one".