16551186360139 has 2 divisors, whose sum is σ = 16551186360140. Its totient is φ = 16551186360138.

The previous prime is 16551186360133. The next prime is 16551186360193. The reversal of 16551186360139 is 93106368115561.

Together with next prime (16551186360193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16551186360139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16551186360139.

It is not a weakly prime, because it can be changed into another prime (16551186360133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8275593180069 + 8275593180070.

It is an arithmetic number, because the mean of its divisors is an integer number (8275593180070).

Almost surely, 2^{16551186360139} is an apocalyptic number.

16551186360139 is a deficient number, since it is larger than the sum of its proper divisors (1).

16551186360139 is an equidigital number, since it uses as much as digits as its factorization.

16551186360139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 16551186360139 in words is "sixteen trillion, five hundred fifty-one billion, one hundred eighty-six million, three hundred sixty thousand, one hundred thirty-nine".