1066646610 has 64 divisors (see below), whose sum is σ = 2891064960. Its totient is φ = 279771840.

The previous prime is 1066646599. The next prime is 1066646627. The reversal of 1066646610 is 166466601.

It is a super-2 number, since 2×1066646610² = 2275469981248984200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15912 + ... + 48851.

It is an arithmetic number, because the mean of its divisors is an integer number (45172890).

Almost surely, 2^1066646610 is an apocalyptic number.

1066646610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1066646610 is an abundant number, since it is smaller than the sum of its proper divisors (1824418350).

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

1066646610 is a wasteful number, since it uses less digits than its factorization.

1066646610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64840 (or 64834 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1066646610 is about 32659.5561819202. The cubic root of 1066646610 is about 1021.7395058126.

Subtracting from 1066646610 its reverse (166466601), we obtain a square (900180009 = 30003²).

The spelling of 1066646610 in words is "one billion, sixty-six million, six hundred forty-six thousand, six hundred ten".