1316581416 has 48 divisors (see below), whose sum is σ = 3568250400. Its totient is φ = 438551712.

The previous prime is 1316581403. The next prime is 1316581429. The reversal of 1316581416 is 6141856131.

It is a happy number.

1316581416 is a `hidden beast` number, since 1 + 3 + 165 + 81 + 416 = 666.

It is an interprime number because it is at equal distance from previous prime (1316581403) and next prime (1316581429).

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 11 ways as a sum of consecutive naturals, for example, 111525 + ... + 122763.

It is an arithmetic number, because the mean of its divisors is an integer number (74338550).

Almost surely, 2^1316581416 is an apocalyptic number.

It is an amenable number.

1316581416 is an abundant number, since it is smaller than the sum of its proper divisors (2251668984).

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

1316581416 is a wasteful number, since it uses less digits than its factorization.

1316581416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12878 (or 12871 counting only the distinct ones).

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

The square root of 1316581416 is about 36284.7270349385. The cubic root of 1316581416 is about 1096.0135083671.

The spelling of 1316581416 in words is "one billion, three hundred sixteen million, five hundred eighty-one thousand, four hundred sixteen".