1318831066 has 32 divisors (see below), whose sum is σ = 2395878912. Its totient is φ = 531513600.

The previous prime is 1318831039. The next prime is 1318831081. The reversal of 1318831066 is 6601388131.

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, 558360 + ... + 560716.

It is an arithmetic number, because the mean of its divisors is an integer number (74871216).

Almost surely, 2^1318831066 is an apocalyptic number.

1318831066 is a deficient number, since it is larger than the sum of its proper divisors (1077047846).

1318831066 is a wasteful number, since it uses less digits than its factorization.

1318831066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1318831066 is about 36315.7137614009. The cubic root of 1318831066 is about 1096.6374079442.

The spelling of 1318831066 in words is "one billion, three hundred eighteen million, eight hundred thirty-one thousand, sixty-six".