1066265456 has 20 divisors (see below), whose sum is σ = 2079759000. Its totient is φ = 529553472.

The previous prime is 1066265443. The next prime is 1066265467. The reversal of 1066265456 is 6545626601.

It is a super-2 number, since 2×1066265456² = 2273844045317775872, 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221246 + ... + 226013.

It is an arithmetic number, because the mean of its divisors is an integer number (103987950).

Almost surely, 2^1066265456 is an apocalyptic number.

1066265456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1066265456 is a deficient number, since it is larger than the sum of its proper divisors (1013493544).

1066265456 is a wasteful number, since it uses less digits than its factorization.

1066265456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447416 (or 447410 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 1066265456 is about 32653.7204005914. The cubic root of 1066265456 is about 1021.6177889939.

The spelling of 1066265456 in words is "one billion, sixty-six million, two hundred sixty-five thousand, four hundred fifty-six".