1066644412 has 48 divisors (see below), whose sum is σ = 2018903040. Its totient is φ = 491819328.

The previous prime is 1066644407. The next prime is 1066644419. The reversal of 1066644412 is 2144466601.

It is a super-2 number, since 2×1066644412² = 2275460603301651488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066644419) 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, 310818 + ... + 314230.

It is an arithmetic number, because the mean of its divisors is an integer number (42060480).

Almost surely, 2^1066644412 is an apocalyptic number.

It is an amenable number.

1066644412 is a deficient number, since it is larger than the sum of its proper divisors (952258628).

1066644412 is a wasteful number, since it uses less digits than its factorization.

1066644412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562 (or 3560 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1066644412 is about 32659.5225317211. The cubic root of 1066644412 is about 1021.7388039916.

The spelling of 1066644412 in words is "one billion, sixty-six million, six hundred forty-four thousand, four hundred twelve".