1316542626064 has 20 divisors (see below), whose sum is σ = 2579462029980. Its totient is φ = 650875005440.

The previous prime is 1316542626019. The next prime is 1316542626067. The reversal of 1316542626064 is 4606262456131.

It can be written as a sum of positive squares in 2 ways, for example, as 552631665664 + 763910960400 = 743392^2 + 874020^2 .

It is not an unprimeable number, because it can be changed into a prime (1316542626067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462267757 + ... + 462270604.

It is an arithmetic number, because the mean of its divisors is an integer number (128973101499).

Almost surely, 2^{1316542626064} is an apocalyptic number.

It is an amenable number.

1316542626064 is a deficient number, since it is larger than the sum of its proper divisors (1262919403916).

1316542626064 is an equidigital number, since it uses as much as digits as its factorization.

1316542626064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924538458 (or 924538452 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 1316542626064 in words is "one trillion, three hundred sixteen billion, five hundred forty-two million, six hundred twenty-six thousand, sixty-four".