16181070422677 has 2 divisors, whose sum is σ = 16181070422678. Its totient is φ = 16181070422676.

The previous prime is 16181070422641. The next prime is 16181070422681. The reversal of 16181070422677 is 77622407018161.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11307038408836 + 4874032013841 = 3362594^2 + 2207721^2 .

It is a cyclic number.

It is not a de Polignac number, because 16181070422677 - 2¹¹ = 16181070420629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16181070422617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8090535211338 + 8090535211339.

It is an arithmetic number, because the mean of its divisors is an integer number (8090535211339).

Almost surely, 2^{16181070422677} is an apocalyptic number.

It is an amenable number.

16181070422677 is a deficient number, since it is larger than the sum of its proper divisors (1).

16181070422677 is an equidigital number, since it uses as much as digits as its factorization.

16181070422677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1580544, while the sum is 52.

The spelling of 16181070422677 in words is "sixteen trillion, one hundred eighty-one billion, seventy million, four hundred twenty-two thousand, six hundred seventy-seven".