1066261011 has 8 divisors (see below), whose sum is σ = 1422869904. Its totient is φ = 710246400.

The previous prime is 1066260997. The next prime is 1066261013. The reversal of 1066261011 is 1101626601.

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

It is not a de Polignac number, because 1066261011 - 2¹⁵ = 1066228243 is a prime.

It is a super-2 number, since 2×1066261011² = 2273825087157484242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066261013) 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, 144366 + ... + 151571.

It is an arithmetic number, because the mean of its divisors is an integer number (177858738).

Almost surely, 2^1066261011 is an apocalyptic number.

1066261011 is a deficient number, since it is larger than the sum of its proper divisors (356608893).

1066261011 is a wasteful number, since it uses less digits than its factorization.

1066261011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297141.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1066261011 is about 32653.6523378320. The cubic root of 1066261011 is about 1021.6163693670.

Adding to 1066261011 its reverse (1101626601), we get a palindrome (2167887612).

The spelling of 1066261011 in words is "one billion, sixty-six million, two hundred sixty-one thousand, eleven".