1066636860 has 48 divisors (see below), whose sum is σ = 2988164256. Its totient is φ = 284285952.

The previous prime is 1066636859. The next prime is 1066636867. The reversal of 1066636860 is 686366601.

1066636860 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1066636860² = 2275428382221319200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066636867) 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, 153624 + ... + 160416.

It is an arithmetic number, because the mean of its divisors is an integer number (62253422).

Almost surely, 2^1066636860 is an apocalyptic number.

1066636860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066636860 is an abundant number, since it is smaller than the sum of its proper divisors (1921527396).

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

1066636860 is a wasteful number, since it uses less digits than its factorization.

1066636860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9422 (or 9420 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 1066636860 is about 32659.4069143945. The cubic root of 1066636860 is about 1021.7363926320.

The spelling of 1066636860 in words is "one billion, sixty-six million, six hundred thirty-six thousand, eight hundred sixty".