1066645433 has 16 divisors (see below), whose sum is σ = 1335242880. Its totient is φ = 830812416.
The previous prime is 1066645429. The next prime is 1066645477. The reversal of 1066645433 is 3345466601.
It is not a de Polignac number, because 1066645433 - 22 = 1066645429 is a prime.
It is a super-2 number, since 2×10666454332 = 2275464959479514978, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1066645403) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151091 + ... + 157992.
It is an arithmetic number, because the mean of its divisors is an integer number (83452680).
Almost surely, 21066645433 is an apocalyptic number.
It is an amenable number.
1066645433 is a deficient number, since it is larger than the sum of its proper divisors (268597447).
1066645433 is a wasteful number, since it uses less digits than its factorization.
1066645433 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 309136.
The product of its (nonzero) digits is 155520, while the sum is 38.
The square root of 1066645433 is about 32659.5381626869. The cubic root of 1066645433 is about 1021.7391299968.
The spelling of 1066645433 in words is "one billion, sixty-six million, six hundred forty-five thousand, four hundred thirty-three".
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