1066432601 has 4 divisors (see below), whose sum is σ = 1148465892. Its totient is φ = 984399312.

The previous prime is 1066432597. The next prime is 1066432649. The reversal of 1066432601 is 1062346601.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 331968400 + 734464201 = 18220^2 + 27101^2 .

It is not a de Polignac number, because 1066432601 - 2² = 1066432597 is a prime.

It is a super-2 number, since 2×1066432601² = 2274556984951250402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066432201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41016626 + ... + 41016651.

It is an arithmetic number, because the mean of its divisors is an integer number (287116473).

Almost surely, 2^1066432601 is an apocalyptic number.

It is an amenable number.

1066432601 is a deficient number, since it is larger than the sum of its proper divisors (82033291).

1066432601 is an equidigital number, since it uses as much as digits as its factorization.

1066432601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82033290.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1066432601 is about 32656.2796564459. The cubic root of 1066432601 is about 1021.6711682541.

The spelling of 1066432601 in words is "one billion, sixty-six million, four hundred thirty-two thousand, six hundred one".