1066045555 has 8 divisors (see below), whose sum is σ = 1279513872. Its totient is φ = 852663648.

The previous prime is 1066045531. The next prime is 1066045573. The reversal of 1066045555 is 5555406601.

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 1066045555 - 2⁵ = 1066045523 is a prime.

It is a super-2 number, since 2×1066045555² = 2272906250670516050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9657 + ... + 47173.

It is an arithmetic number, because the mean of its divisors is an integer number (159939234).

Almost surely, 2^1066045555 is an apocalyptic number.

1066045555 is a deficient number, since it is larger than the sum of its proper divisors (213468317).

1066045555 is an equidigital number, since it uses as much as digits as its factorization.

1066045555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43205.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 1066045555 is about 32650.3530608782. The cubic root of 1066045555 is about 1021.5475531323.

The spelling of 1066045555 in words is "one billion, sixty-six million, forty-five thousand, five hundred fifty-five".