16554605352199 has 2 divisors, whose sum is σ = 16554605352200. Its totient is φ = 16554605352198.

The previous prime is 16554605352023. The next prime is 16554605352251. The reversal of 16554605352199 is 99125350645561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16554605352199 - 2¹⁵ = 16554605319431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16554605352899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277302676099 + 8277302676100.

It is an arithmetic number, because the mean of its divisors is an integer number (8277302676100).

Almost surely, 2^{16554605352199} is an apocalyptic number.

16554605352199 is a deficient number, since it is larger than the sum of its proper divisors (1).

16554605352199 is an equidigital number, since it uses as much as digits as its factorization.

16554605352199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740000, while the sum is 61.

The spelling of 16554605352199 in words is "sixteen trillion, five hundred fifty-four billion, six hundred five million, three hundred fifty-two thousand, one hundred ninety-nine".