1066644046 has 8 divisors (see below), whose sum is σ = 1723040424. Its totient is φ = 492297240.

The previous prime is 1066644031. The next prime is 1066644049. The reversal of 1066644046 is 6404466601.

It is a happy number.

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

It is a super-2 number, since 2×1066644046² = 2275459041734500232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066643996 and 1066644014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066644049) 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, 20512360 + ... + 20512411.

It is an arithmetic number, because the mean of its divisors is an integer number (215380053).

Almost surely, 2^1066644046 is an apocalyptic number.

1066644046 is a deficient number, since it is larger than the sum of its proper divisors (656396378).

1066644046 is a wasteful number, since it uses less digits than its factorization.

1066644046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41024786.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 1066644046 is about 32659.5169284544. The cubic root of 1066644046 is about 1021.7386871277.

The spelling of 1066644046 in words is "one billion, sixty-six million, six hundred forty-four thousand, forty-six".