1516668340 has 48 divisors (see below), whose sum is σ = 3477225024. Its totient is φ = 551091200.

The previous prime is 1516668319. The next prime is 1516668341. The reversal of 1516668340 is 438666151.

It is a junction number, because it is equal to n+sod(n) for n = 1516668293 and 1516668302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516668341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497220 + ... + 500260.

It is an arithmetic number, because the mean of its divisors is an integer number (72442188).

Almost surely, 2^1516668340 is an apocalyptic number.

1516668340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1516668340 is an abundant number, since it is smaller than the sum of its proper divisors (1960556684).

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

1516668340 is a wasteful number, since it uses less digits than its factorization.

1516668340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328 (or 5326 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1516668340 is about 38944.4263021039. The cubic root of 1516668340 is about 1148.9387411626.

The spelling of 1516668340 in words is "one billion, five hundred sixteen million, six hundred sixty-eight thousand, three hundred forty".