1066235660 has 48 divisors (see below), whose sum is σ = 2628139584. Its totient is φ = 355684608.

The previous prime is 1066235659. The next prime is 1066235671. The reversal of 1066235660 is 665326601.

It is a super-2 number, since 2×1066235660² = 2273716965311271200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1066235660.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97739 + ... + 108098.

It is an arithmetic number, because the mean of its divisors is an integer number (54752908).

Almost surely, 2^1066235660 is an apocalyptic number.

1066235660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066235660 is an abundant number, since it is smaller than the sum of its proper divisors (1561903924).

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

1066235660 is a wasteful number, since it uses less digits than its factorization.

1066235660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205890 (or 205888 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 1066235660 is about 32653.2641553643. The cubic root of 1066235660 is about 1021.6082727873.

The spelling of 1066235660 in words is "one billion, sixty-six million, two hundred thirty-five thousand, six hundred sixty".