5166644437 has 8 divisors (see below), whose sum is σ = 5659205400. Its totient is φ = 4695043584.

The previous prime is 5166644411. The next prime is 5166644449. The reversal of 5166644437 is 7344466615.

It can be written as a sum of positive squares in 4 ways, for example, as 3016096561 + 2150547876 = 54919^2 + 46374^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5166644437 - 2¹¹ = 5166642389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5166644137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5239512 + ... + 5240497.

It is an arithmetic number, because the mean of its divisors is an integer number (707400675).

Almost surely, 2^5166644437 is an apocalyptic number.

It is an amenable number.

5166644437 is a deficient number, since it is larger than the sum of its proper divisors (492560963).

5166644437 is a wasteful number, since it uses less digits than its factorization.

5166644437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10480055.

The product of its digits is 1451520, while the sum is 46.

The square root of 5166644437 is about 71879.3742112437. The cubic root of 5166644437 is about 1728.7659165254.

The spelling of 5166644437 in words is "five billion, one hundred sixty-six million, six hundred forty-four thousand, four hundred thirty-seven".