16513948751 has 2 divisors, whose sum is σ = 16513948752. Its totient is φ = 16513948750.

The previous prime is 16513948739. The next prime is 16513948757. The reversal of 16513948751 is 15784931561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16513948751 - 2¹⁴ = 16513932367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16513948751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16513948757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8256974375 + 8256974376.

It is an arithmetic number, because the mean of its divisors is an integer number (8256974376).

Almost surely, 2^16513948751 is an apocalyptic number.

16513948751 is a deficient number, since it is larger than the sum of its proper divisors (1).

16513948751 is an equidigital number, since it uses as much as digits as its factorization.

16513948751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 50.

The spelling of 16513948751 in words is "sixteen billion, five hundred thirteen million, nine hundred forty-eight thousand, seven hundred fifty-one".