1066749361 has 8 divisors (see below), whose sum is σ = 1113649344. Its totient is φ = 1019892720.

The previous prime is 1066749329. The next prime is 1066749373. The reversal of 1066749361 is 1639476601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1066749361 - 2⁵ = 1066749329 is a prime.

It is a super-2 number, since 2×1066749361² = 2275908398387816642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066749961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45835 + ... + 65071.

It is an arithmetic number, because the mean of its divisors is an integer number (139206168).

Almost surely, 2^1066749361 is an apocalyptic number.

It is an amenable number.

1066749361 is a deficient number, since it is larger than the sum of its proper divisors (46899983).

1066749361 is a wasteful number, since it uses less digits than its factorization.

1066749361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21671.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1066749361 is about 32661.1292058312. The cubic root of 1066749361 is about 1021.7723131123.

The spelling of 1066749361 in words is "one billion, sixty-six million, seven hundred forty-nine thousand, three hundred sixty-one".