1066451855 has 64 divisors (see below), whose sum is σ = 1589760000. Its totient is φ = 670560768.

The previous prime is 1066451843. The next prime is 1066451873. The reversal of 1066451855 is 5581546601.

It is not a de Polignac number, because 1066451855 - 2⁴ = 1066451839 is a prime.

It is a super-2 number, since 2×1066451855² = 2274639118065882050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4656881 + ... + 4657109.

It is an arithmetic number, because the mean of its divisors is an integer number (24840000).

Almost surely, 2^1066451855 is an apocalyptic number.

1066451855 is a deficient number, since it is larger than the sum of its proper divisors (523308145).

1066451855 is a wasteful number, since it uses less digits than its factorization.

1066451855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456.

The product of its (nonzero) digits is 144000, while the sum is 41.

The square root of 1066451855 is about 32656.5744529337. The cubic root of 1066451855 is about 1021.6773168340.

The spelling of 1066451855 in words is "one billion, sixty-six million, four hundred fifty-one thousand, eight hundred fifty-five".