1218056706 has 48 divisors (see below), whose sum is σ = 2721491136. Its totient is φ = 393533088.

The previous prime is 1218056699. The next prime is 1218056737. The reversal of 1218056706 is 6076508121.

1218056706 is a `hidden beast` number, since 12 + 1 + 80 + 567 + 0 + 6 = 666.

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, 71491 + ... + 86873.

It is an arithmetic number, because the mean of its divisors is an integer number (56697732).

Almost surely, 2^1218056706 is an apocalyptic number.

1218056706 is an abundant number, since it is smaller than the sum of its proper divisors (1503434430).

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

1218056706 is a wasteful number, since it uses less digits than its factorization.

1218056706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15527 (or 15524 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1218056706 is about 34900.6691339865. The cubic root of 1218056706 is about 1067.9620878264.

It can be divided in two parts, 12180 and 56706, that added together give a palindrome (68886).

The spelling of 1218056706 in words is "one billion, two hundred eighteen million, fifty-six thousand, seven hundred six".