1065666061 has 8 divisors (see below), whose sum is σ = 1112353920. Its totient is φ = 1019007792.

The previous prime is 1065666059. The next prime is 1065666089. The reversal of 1065666061 is 1606665601.

1065666061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1065666061 - 2¹ = 1065666059 is a prime.

It is a super-3 number, since 3×1065666061³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 1065666061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065666361) 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, 98811 + ... + 109063.

It is an arithmetic number, because the mean of its divisors is an integer number (139044240).

Almost surely, 2^1065666061 is an apocalyptic number.

It is an amenable number.

1065666061 is a deficient number, since it is larger than the sum of its proper divisors (46687859).

1065666061 is a wasteful number, since it uses less digits than its factorization.

1065666061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14795.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1065666061 is about 32644.5410597239. The cubic root of 1065666061 is about 1021.4263209217.

The spelling of 1065666061 in words is "one billion, sixty-five million, six hundred sixty-six thousand, sixty-one".