1066709146 has 8 divisors (see below), whose sum is σ = 1655238420. Its totient is φ = 514963008.

The previous prime is 1066709143. The next prime is 1066709159. The reversal of 1066709146 is 6419076601.

It can be written as a sum of positive squares in 2 ways, for example, as 976250025 + 90459121 = 31245^2 + 9511^2 .

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

It is a super-2 number, since 2×1066709146² = 2275736804320098632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066709099 and 1066709108.

It is not an unprimeable number, because it can be changed into a prime (1066709141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9195711 + ... + 9195826.

Almost surely, 2^1066709146 is an apocalyptic number.

1066709146 is a deficient number, since it is larger than the sum of its proper divisors (588529274).

1066709146 is a wasteful number, since it uses less digits than its factorization.

1066709146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18391568.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1066709146 is about 32660.5135599549. The cubic root of 1066709146 is about 1021.7594731421.

The spelling of 1066709146 in words is "one billion, sixty-six million, seven hundred nine thousand, one hundred forty-six".