16899195877 has 2 divisors, whose sum is σ = 16899195878. Its totient is φ = 16899195876.

The previous prime is 16899195829. The next prime is 16899195923. The reversal of 16899195877 is 77859199861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16437547681 + 461648196 = 128209^2 + 21486^2 .

It is a cyclic number.

It is not a de Polignac number, because 16899195877 - 2⁷ = 16899195749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16899196877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8449597938 + 8449597939.

It is an arithmetic number, because the mean of its divisors is an integer number (8449597939).

Almost surely, 2^16899195877 is an apocalyptic number.

It is an amenable number.

16899195877 is a deficient number, since it is larger than the sum of its proper divisors (1).

16899195877 is an equidigital number, since it uses as much as digits as its factorization.

16899195877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68584320, while the sum is 70.

The spelling of 16899195877 in words is "sixteen billion, eight hundred ninety-nine million, one hundred ninety-five thousand, eight hundred seventy-seven".