5101666816 has 40 divisors (see below), whose sum is σ = 10792997820. Its totient is φ = 2400780288.

The previous prime is 5101666793. The next prime is 5101666849. The reversal of 5101666816 is 6186661015.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4855302400 + 246364416 = 69680^2 + 15696^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284361 + ... + 301768.

Almost surely, 2^5101666816 is an apocalyptic number.

It is an amenable number.

5101666816 is an abundant number, since it is smaller than the sum of its proper divisors (5691331004).

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

5101666816 is an equidigital number, since it uses as much as digits as its factorization.

5101666816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586164 (or 586148 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 5101666816 is about 71425.9533783064. The cubic root of 5101666816 is about 1721.4881226157.

The spelling of 5101666816 in words is "five billion, one hundred one million, six hundred sixty-six thousand, eight hundred sixteen".