1066645355 has 8 divisors (see below), whose sum is σ = 1335625632. Its totient is φ = 816215488.

The previous prime is 1066645291. The next prime is 1066645369. The reversal of 1066645355 is 5535466601.

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 1066645355 - 2⁶ = 1066645291 is a prime.

It is a super-2 number, since 2×1066645355² = 2275464626686152050, 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, 4637474 + ... + 4637703.

It is an arithmetic number, because the mean of its divisors is an integer number (166953204).

Almost surely, 2^1066645355 is an apocalyptic number.

1066645355 is a deficient number, since it is larger than the sum of its proper divisors (268980277).

1066645355 is an equidigital number, since it uses as much as digits as its factorization.

1066645355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9275205.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 1066645355 is about 32659.5369685487. The cubic root of 1066645355 is about 1021.7391050914.

The spelling of 1066645355 in words is "one billion, sixty-six million, six hundred forty-five thousand, three hundred fifty-five".