1066770737 has 4 divisors (see below), whose sum is σ = 1076211300. Its totient is φ = 1057330176.

The previous prime is 1066770721. The next prime is 1066770739. The reversal of 1066770737 is 7370776601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7370776601 = 283 ⋅26045147.

It can be written as a sum of positive squares in 2 ways, for example, as 339443776 + 727326961 = 18424^2 + 26969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066770737 - 2⁴ = 1066770721 is a prime.

It is a super-2 number, since 2×1066770737² = 2275999610639046338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066770739) 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, 4720112 + ... + 4720337.

It is an arithmetic number, because the mean of its divisors is an integer number (269052825).

Almost surely, 2^1066770737 is an apocalyptic number.

It is an amenable number.

1066770737 is a deficient number, since it is larger than the sum of its proper divisors (9440563).

1066770737 is an equidigital number, since it uses as much as digits as its factorization.

1066770737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9440562.

The product of its (nonzero) digits is 259308, while the sum is 44.

The square root of 1066770737 is about 32661.4564433370. The cubic root of 1066770737 is about 1021.7791379766.

The spelling of 1066770737 in words is "one billion, sixty-six million, seven hundred seventy thousand, seven hundred thirty-seven".