1056666433 has 8 divisors (see below), whose sum is σ = 1124506152. Its totient is φ = 989458176.

The previous prime is 1056666427. The next prime is 1056666439. The reversal of 1056666433 is 3346666501.

It is an interprime number because it is at equal distance from previous prime (1056666427) and next prime (1056666439).

It can be written as a sum of positive squares in 4 ways, for example, as 528218289 + 528448144 = 22983^2 + 22988^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1056666433 - 2²⁵ = 1023112001 is a prime.

It is a super-2 number, since 2×1056666433² = 2233087901257886978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056666439) 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, 154410 + ... + 161107.

It is an arithmetic number, because the mean of its divisors is an integer number (140563269).

Almost surely, 2^1056666433 is an apocalyptic number.

It is an amenable number.

1056666433 is a deficient number, since it is larger than the sum of its proper divisors (67839719).

1056666433 is a wasteful number, since it uses less digits than its factorization.

1056666433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315731.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 1056666433 is about 32506.4060301966. The cubic root of 1056666433 is about 1018.5428485279.

It can be divided in two parts, 1056 and 666433, that added together give a square (667489 = 817²).

The spelling of 1056666433 in words is "one billion, fifty-six million, six hundred sixty-six thousand, four hundred thirty-three".