1066441447 has 16 divisors (see below), whose sum is σ = 1166618880. Its totient is φ = 972115200.

The previous prime is 1066441429. The next prime is 1066441457. The reversal of 1066441447 is 7441446601.

It is a cyclic number.

It is not a de Polignac number, because 1066441447 - 2²³ = 1058052839 is a prime.

It is a super-2 number, since 2×1066441447² = 2274594719758907618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066441457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22393 + ... + 51325.

It is an arithmetic number, because the mean of its divisors is an integer number (72913680).

Almost surely, 2^1066441447 is an apocalyptic number.

1066441447 is a deficient number, since it is larger than the sum of its proper divisors (100177433).

1066441447 is a wasteful number, since it uses less digits than its factorization.

1066441447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29034.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 1066441447 is about 32656.4150971903. The cubic root of 1066441447 is about 1021.6739931484.

The spelling of 1066441447 in words is "one billion, sixty-six million, four hundred forty-one thousand, four hundred forty-seven".