1066683694 has 8 divisors (see below), whose sum is σ = 1622561328. Its totient is φ = 525829920.

The previous prime is 1066683689. The next prime is 1066683697. The reversal of 1066683694 is 4963866601.

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

It is a super-2 number, since 2×1066683694² = 2275628206090971272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066683697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3755787 + ... + 3756070.

It is an arithmetic number, because the mean of its divisors is an integer number (202820166).

Almost surely, 2^1066683694 is an apocalyptic number.

1066683694 is a deficient number, since it is larger than the sum of its proper divisors (555877634).

1066683694 is an equidigital number, since it uses as much as digits as its factorization.

1066683694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7511930.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 1066683694 is about 32660.1239128084. The cubic root of 1066683694 is about 1021.7513465817.

It can be divided in two parts, 10 and 66683694, that multiplied together give a triangular number (666836940 = T₃₆₅₁₉).

The spelling of 1066683694 in words is "one billion, sixty-six million, six hundred eighty-three thousand, six hundred ninety-four".