16055565156637 has 2 divisors, whose sum is σ = 16055565156638. Its totient is φ = 16055565156636.

The previous prime is 16055565156623. The next prime is 16055565156703. The reversal of 16055565156637 is 73665156555061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13996495133721 + 2059070022916 = 3741189^2 + 1434946^2 .

It is a cyclic number.

It is not a de Polignac number, because 16055565156637 - 2²³ = 16055556768029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16055565157637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8027782578318 + 8027782578319.

It is an arithmetic number, because the mean of its divisors is an integer number (8027782578319).

Almost surely, 2^{16055565156637} is an apocalyptic number.

It is an amenable number.

16055565156637 is a deficient number, since it is larger than the sum of its proper divisors (1).

16055565156637 is an equidigital number, since it uses as much as digits as its factorization.

16055565156637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85050000, while the sum is 61.

The spelling of 16055565156637 in words is "sixteen trillion, fifty-five billion, five hundred sixty-five million, one hundred fifty-six thousand, six hundred thirty-seven".