1316051646218 has 8 divisors (see below), whose sum is σ = 1975455057348. Its totient is φ = 657566627104.

The previous prime is 1316051646181. The next prime is 1316051646229. The reversal of 1316051646218 is 8126461506131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1284475422409 + 31576223809 = 1133347^2 + 177697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229594421 + ... + 229600152.

Almost surely, 2^{1316051646218} is an apocalyptic number.

1316051646218 is a deficient number, since it is larger than the sum of its proper divisors (659403411130).

1316051646218 is a wasteful number, since it uses less digits than its factorization.

1316051646218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459196008.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 1316051646218 in words is "one trillion, three hundred sixteen billion, fifty-one million, six hundred forty-six thousand, two hundred eighteen".