1066318478 has 16 divisors (see below), whose sum is σ = 1622743584. Its totient is φ = 525450240.

The previous prime is 1066318471. The next prime is 1066318481. The reversal of 1066318478 is 8748136601.

It is a super-2 number, since 2×1066318478² = 2274070193048472968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066318471) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35351 + ... + 58157.

It is an arithmetic number, because the mean of its divisors is an integer number (101421474).

Almost surely, 2^1066318478 is an apocalyptic number.

1066318478 is a deficient number, since it is larger than the sum of its proper divisors (556425106).

1066318478 is a wasteful number, since it uses less digits than its factorization.

1066318478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23147.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 1066318478 is about 32654.5322734839. The cubic root of 1066318478 is about 1021.6347226509.

The spelling of 1066318478 in words is "one billion, sixty-six million, three hundred eighteen thousand, four hundred seventy-eight".