1316542660154 has 4 divisors (see below), whose sum is σ = 1974813990234. Its totient is φ = 658271330076.

The previous prime is 1316542660117. The next prime is 1316542660159. The reversal of 1316542660154 is 4510662456131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1266356355625 + 50186304529 = 1125325^2 + 224023^2 .

It is not an unprimeable number, because it can be changed into a prime (1316542660159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329135665037 + ... + 329135665040.

Almost surely, 2^{1316542660154} is an apocalyptic number.

1316542660154 is a deficient number, since it is larger than the sum of its proper divisors (658271330080).

1316542660154 is an equidigital number, since it uses as much as digits as its factorization.

1316542660154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658271330079.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 1316542660154 in words is "one trillion, three hundred sixteen billion, five hundred forty-two million, six hundred sixty thousand, one hundred fifty-four".