1316637564 has 24 divisors (see below), whose sum is σ = 3351441408. Its totient is φ = 398981040.

The previous prime is 1316637557. The next prime is 1316637571. The reversal of 1316637564 is 4657366131.

It is an interprime number because it is at equal distance from previous prime (1316637557) and next prime (1316637571).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4987132 + ... + 4987395.

It is an arithmetic number, because the mean of its divisors is an integer number (139643392).

Almost surely, 2^1316637564 is an apocalyptic number.

It is an amenable number.

1316637564 is an abundant number, since it is smaller than the sum of its proper divisors (2034803844).

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

1316637564 is a wasteful number, since it uses less digits than its factorization.

1316637564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9974545 (or 9974543 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 1316637564 is about 36285.5007406540. The cubic root of 1316637564 is about 1096.0290886396.

The spelling of 1316637564 in words is "one billion, three hundred sixteen million, six hundred thirty-seven thousand, five hundred sixty-four".