16235372077 has 2 divisors, whose sum is σ = 16235372078. Its totient is φ = 16235372076.

The previous prime is 16235372071. The next prime is 16235372183. The reversal of 16235372077 is 77027353261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15642254761 + 593117316 = 125069^2 + 24354^2 .

It is a cyclic number.

It is not a de Polignac number, because 16235372077 - 2⁷ = 16235371949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16235372071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8117686038 + 8117686039.

It is an arithmetic number, because the mean of its divisors is an integer number (8117686039).

Almost surely, 2^16235372077 is an apocalyptic number.

It is an amenable number.

16235372077 is a deficient number, since it is larger than the sum of its proper divisors (1).

16235372077 is an equidigital number, since it uses as much as digits as its factorization.

16235372077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 370440, while the sum is 43.

The spelling of 16235372077 in words is "sixteen billion, two hundred thirty-five million, three hundred seventy-two thousand, seventy-seven".