1316357256066 has 16 divisors (see below), whose sum is σ = 2656867857600. Its totient is φ = 434760194448.

The previous prime is 1316357256061. The next prime is 1316357256101. The reversal of 1316357256066 is 6606527536131.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1316357256061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006388686 + ... + 1006389993.

It is an arithmetic number, because the mean of its divisors is an integer number (166054241100).

Almost surely, 2^{1316357256066} is an apocalyptic number.

1316357256066 is an abundant number, since it is smaller than the sum of its proper divisors (1340510601534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1316357256066 is a wasteful number, since it uses less digits than its factorization.

1316357256066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012778793.

The product of its (nonzero) digits is 4082400, while the sum is 51.

The spelling of 1316357256066 in words is "one trillion, three hundred sixteen billion, three hundred fifty-seven million, two hundred fifty-six thousand, sixty-six".