1315116648 has 40 divisors (see below), whose sum is σ = 3683546130. Its totient is φ = 438372000.

The previous prime is 1315116611. The next prime is 1315116653. The reversal of 1315116648 is 8466115131.

It is a happy number.

1315116648 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 1 + 1 + 6 + 648 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1294704324 + 20412324 = 35982^2 + 4518^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1014103 + ... + 1015398.

Almost surely, 2^1315116648 is an apocalyptic number.

1315116648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1315116648 is an abundant number, since it is smaller than the sum of its proper divisors (2368429482).

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

1315116648 is a wasteful number, since it uses less digits than its factorization.

1315116648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029519 (or 2029506 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1315116648 is about 36264.5370575718. The cubic root of 1315116648 is about 1095.6068994454.

The spelling of 1315116648 in words is "one billion, three hundred fifteen million, one hundred sixteen thousand, six hundred forty-eight".