1066909955 has 8 divisors (see below), whose sum is σ = 1280911104. Its totient is φ = 853115200.

The previous prime is 1066909951. The next prime is 1066909969. The reversal of 1066909955 is 5599096601.

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

It is not a de Polignac number, because 1066909955 - 2² = 1066909951 is a prime.

It is a super-2 number, since 2×1066909955² = 2276593704156204050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066909951) 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, 39986 + ... + 61095.

It is an arithmetic number, because the mean of its divisors is an integer number (160113888).

Almost surely, 2^1066909955 is an apocalyptic number.

1066909955 is a deficient number, since it is larger than the sum of its proper divisors (214001149).

1066909955 is a wasteful number, since it uses less digits than its factorization.

1066909955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103197.

The product of its (nonzero) digits is 656100, while the sum is 50.

The square root of 1066909955 is about 32663.5876014868. The cubic root of 1066909955 is about 1021.8235848465.

The spelling of 1066909955 in words is "one billion, sixty-six million, nine hundred nine thousand, nine hundred fifty-five".