16139646851 has 2 divisors, whose sum is σ = 16139646852. Its totient is φ = 16139646850.

The previous prime is 16139646823. The next prime is 16139646857. The reversal of 16139646851 is 15864693161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16139646851 - 2¹⁴ = 16139630467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16139646851.

It is not a weakly prime, because it can be changed into another prime (16139646857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8069823425 + 8069823426.

It is an arithmetic number, because the mean of its divisors is an integer number (8069823426).

Almost surely, 2^16139646851 is an apocalyptic number.

16139646851 is a deficient number, since it is larger than the sum of its proper divisors (1).

16139646851 is an equidigital number, since it uses as much as digits as its factorization.

16139646851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 50.

The spelling of 16139646851 in words is "sixteen billion, one hundred thirty-nine million, six hundred forty-six thousand, eight hundred fifty-one".