5165666101 has 2 divisors, whose sum is σ = 5165666102. Its totient is φ = 5165666100.

The previous prime is 5165666063. The next prime is 5165666119. The reversal of 5165666101 is 1016665615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5162422500 + 3243601 = 71850^2 + 1801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5165666101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5165666161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582833050 + 2582833051.

It is an arithmetic number, because the mean of its divisors is an integer number (2582833051).

Almost surely, 2^5165666101 is an apocalyptic number.

It is an amenable number.

5165666101 is a deficient number, since it is larger than the sum of its proper divisors (1).

5165666101 is an equidigital number, since it uses as much as digits as its factorization.

5165666101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 5165666101 is about 71872.5684875669. The cubic root of 5165666101 is about 1728.6567921400.

The spelling of 5165666101 in words is "five billion, one hundred sixty-five million, six hundred sixty-six thousand, one hundred one".