1066747660 has 48 divisors (see below), whose sum is σ = 2446043040. Its totient is φ = 387555840.

The previous prime is 1066747651. The next prime is 1066747663. The reversal of 1066747660 is 667476601.

It is a super-2 number, since 2×1066747660² = 2275901140230951200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1066747663) 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, 469006 + ... + 471274.

It is an arithmetic number, because the mean of its divisors is an integer number (50959230).

Almost surely, 2^1066747660 is an apocalyptic number.

1066747660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066747660 is an abundant number, since it is smaller than the sum of its proper divisors (1379295380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1066747660 is a wasteful number, since it uses less digits than its factorization.

1066747660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426 (or 4424 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 1066747660 is about 32661.1031656924. The cubic root of 1066747660 is about 1021.7717700183.

The spelling of 1066747660 in words is "one billion, sixty-six million, seven hundred forty-seven thousand, six hundred sixty".