1066323155 has 8 divisors (see below), whose sum is σ = 1292257584. Its totient is φ = 844612000.

The previous prime is 1066323061. The next prime is 1066323163. The reversal of 1066323155 is 5513236601.

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

It is not a de Polignac number, because 1066323155 - 2¹⁸ = 1066061011 is a prime.

It is a super-2 number, since 2×1066323155² = 2274090141778308050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 1055261 + ... + 1056270.

It is an arithmetic number, because the mean of its divisors is an integer number (161532198).

Almost surely, 2^1066323155 is an apocalyptic number.

1066323155 is a deficient number, since it is larger than the sum of its proper divisors (225934429).

1066323155 is a wasteful number, since it uses less digits than its factorization.

1066323155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111637.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 1066323155 is about 32654.6038867416. The cubic root of 1066323155 is about 1021.6362163193.

Adding to 1066323155 its reverse (5513236601), we get a palindrome (6579559756).

The spelling of 1066323155 in words is "one billion, sixty-six million, three hundred twenty-three thousand, one hundred fifty-five".