5166512641 has 2 divisors, whose sum is σ = 5166512642. Its totient is φ = 5166512640.

The previous prime is 5166512591. The next prime is 5166512677. The reversal of 5166512641 is 1462156615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4545456400 + 621056241 = 67420^2 + 24921^2 .

It is a cyclic number.

It is not a de Polignac number, because 5166512641 - 2¹³ = 5166504449 is a prime.

It is a super-2 number, since 2×5166512641² = 53385705739225589762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5166512641.

It is not a weakly prime, because it can be changed into another prime (5166510641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583256320 + 2583256321.

It is an arithmetic number, because the mean of its divisors is an integer number (2583256321).

Almost surely, 2^5166512641 is an apocalyptic number.

It is an amenable number.

5166512641 is a deficient number, since it is larger than the sum of its proper divisors (1).

5166512641 is an equidigital number, since it uses as much as digits as its factorization.

5166512641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 37.

The square root of 5166512641 is about 71878.4574194522. The cubic root of 5166512641 is about 1728.7512166963.

The spelling of 5166512641 in words is "five billion, one hundred sixty-six million, five hundred twelve thousand, six hundred forty-one".