1056167666 has 8 divisors (see below), whose sum is σ = 1584429660. Its totient is φ = 528024448.

The previous prime is 1056167641. The next prime is 1056167681. The reversal of 1056167666 is 6667616501.

It can be written as a sum of positive squares in 2 ways, for example, as 819161641 + 237006025 = 28621^2 + 15395^2 .

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

It is a super-2 number, since 2×1056167666² = 2230980277407775112, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2471 + ... + 46026.

Almost surely, 2^1056167666 is an apocalyptic number.

1056167666 is a deficient number, since it is larger than the sum of its proper divisors (528261994).

1056167666 is a wasteful number, since it uses less digits than its factorization.

1056167666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59388.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 1056167666 is about 32498.7332983918. The cubic root of 1056167666 is about 1018.3825659963.

The spelling of 1056167666 in words is "one billion, fifty-six million, one hundred sixty-seven thousand, six hundred sixty-six".