1316166987 has 16 divisors (see below), whose sum is σ = 1761984000. Its totient is φ = 873906624.

The previous prime is 1316166983. The next prime is 1316166989. The reversal of 1316166987 is 7896616131.

It is not a de Polignac number, because 1316166987 - 2² = 1316166983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1316166983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431714 + ... + 1432632.

It is an arithmetic number, because the mean of its divisors is an integer number (110124000).

Almost surely, 2^1316166987 is an apocalyptic number.

1316166987 is a deficient number, since it is larger than the sum of its proper divisors (445817013).

1316166987 is an equidigital number, since it uses as much as digits as its factorization.

1316166987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330.

The product of its digits is 326592, while the sum is 48.

The square root of 1316166987 is about 36279.0157942577. The cubic root of 1316166987 is about 1095.8984965027.

The spelling of 1316166987 in words is "one billion, three hundred sixteen million, one hundred sixty-six thousand, nine hundred eighty-seven".