1066450454 has 4 divisors (see below), whose sum is σ = 1599675684. Its totient is φ = 533225226.

The previous prime is 1066450423. The next prime is 1066450501. The reversal of 1066450454 is 4540546601.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1066450454² = 2274633141673612232, 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 as a sum of consecutive naturals, namely, 266612612 + ... + 266612615.

It is an arithmetic number, because the mean of its divisors is an integer number (399918921).

Almost surely, 2^1066450454 is an apocalyptic number.

1066450454 is a deficient number, since it is larger than the sum of its proper divisors (533225230).

1066450454 is an equidigital number, since it uses as much as digits as its factorization.

1066450454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533225229.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 1066450454 is about 32656.5530024220. The cubic root of 1066450454 is about 1021.6768694406.

The spelling of 1066450454 in words is "one billion, sixty-six million, four hundred fifty thousand, four hundred fifty-four".