1866360006 has 48 divisors (see below), whose sum is σ = 4864704000. Its totient is φ = 505179504.

The previous prime is 1866359983. The next prime is 1866360017. The reversal of 1866360006 is 6000636681.

1866360006 is a `hidden beast` number, since 18 + 6 + 636 + 0 + 0 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387406 + ... + 392193.

It is an arithmetic number, because the mean of its divisors is an integer number (101348000).

Almost surely, 2^1866360006 is an apocalyptic number.

1866360006 is an abundant number, since it is smaller than the sum of its proper divisors (2998343994).

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

1866360006 is a wasteful number, since it uses less digits than its factorization.

1866360006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779633 (or 779630 counting only the distinct ones).

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

The square root of 1866360006 is about 43201.3889360053. The cubic root of 1866360006 is about 1231.2090708787.

Adding to 1866360006 its reverse (6000636681), we get a palindrome (7866996687).

The spelling of 1866360006 in words is "one billion, eight hundred sixty-six million, three hundred sixty thousand, six".