10516501549 has 2 divisors, whose sum is σ = 10516501550. Its totient is φ = 10516501548.

The previous prime is 10516501547. The next prime is 10516501559. The reversal of 10516501549 is 94510561501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7292306025 + 3224195524 = 85395^2 + 56782^2 .

It is a cyclic number.

It is not a de Polignac number, because 10516501549 - 2¹ = 10516501547 is a prime.

It is a super-2 number, since 2×10516501549² (a number of 21 digits) contains 22 as substring.

Together with 10516501547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10516501543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5258250774 + 5258250775.

It is an arithmetic number, because the mean of its divisors is an integer number (5258250775).

Almost surely, 2^10516501549 is an apocalyptic number.

It is an amenable number.

10516501549 is a deficient number, since it is larger than the sum of its proper divisors (1).

10516501549 is an equidigital number, since it uses as much as digits as its factorization.

10516501549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 10516501549 in words is "ten billion, five hundred sixteen million, five hundred one thousand, five hundred forty-nine".