2066466660 has 48 divisors (see below), whose sum is σ = 5845773696. Its totient is φ = 545375232.

The previous prime is 2066466643. The next prime is 2066466679. The reversal of 2066466660 is 666646602.

It is a happy number.

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, 171712 + ... + 183351.

It is an arithmetic number, because the mean of its divisors is an integer number (121786952).

Almost surely, 2^2066466660 is an apocalyptic number.

2066466660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2066466660 is an abundant number, since it is smaller than the sum of its proper divisors (3779307036).

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

2066466660 is a wasteful number, since it uses less digits than its factorization.

2066466660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355172 (or 355170 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 42.

The square root of 2066466660 is about 45458.4058233458. The cubic root of 2066466660 is about 1273.7263528877.

The spelling of 2066466660 in words is "two billion, sixty-six million, four hundred sixty-six thousand, six hundred sixty".