1066260765 has 16 divisors (see below), whose sum is σ = 1716236928. Its totient is φ = 565265856.

The previous prime is 1066260743. The next prime is 1066260773. The reversal of 1066260765 is 5670626601.

It is not a de Polignac number, because 1066260765 - 2⁵ = 1066260733 is a prime.

It is a super-2 number, since 2×1066260765² = 2273824037956770450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 210322 + ... + 215331.

It is an arithmetic number, because the mean of its divisors is an integer number (107264808).

Almost surely, 2^1066260765 is an apocalyptic number.

1066260765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1066260765 is a deficient number, since it is larger than the sum of its proper divisors (649976163).

1066260765 is a wasteful number, since it uses less digits than its factorization.

1066260765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425828.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1066260765 is about 32653.6485710250. The cubic root of 1066260765 is about 1021.6162908003.

The spelling of 1066260765 in words is "one billion, sixty-six million, two hundred sixty thousand, seven hundred sixty-five".