1066105444 has 6 divisors (see below), whose sum is σ = 1865684534. Its totient is φ = 533052720.

The previous prime is 1066105421. The next prime is 1066105463. The reversal of 1066105444 is 4445016601.

It can be written as a sum of positive squares in only one way, i.e., 1066022500 + 82944 = 32650^2 + 288^2 .

It is a super-2 number, since 2×1066105444² = 2273161635452874272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133263177 + ... + 133263184.

Almost surely, 2^1066105444 is an apocalyptic number.

It is an amenable number.

1066105444 is a deficient number, since it is larger than the sum of its proper divisors (799579090).

1066105444 is a wasteful number, since it uses less digits than its factorization.

1066105444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266526365 (or 266526363 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1066105444 is about 32651.2701743745. The cubic root of 1066105444 is about 1021.5666824948.

The spelling of 1066105444 in words is "one billion, sixty-six million, one hundred five thousand, four hundred forty-four".