16179470077 has 2 divisors, whose sum is σ = 16179470078. Its totient is φ = 16179470076.

The previous prime is 16179470057. The next prime is 16179470119. The reversal of 16179470077 is 77007497161.

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., 8283548196 + 7895921881 = 91014^2 + 88859^2 .

It is a cyclic number.

It is not a de Polignac number, because 16179470077 - 2¹⁹ = 16178945789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16179470077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16179470057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8089735038 + 8089735039.

It is an arithmetic number, because the mean of its divisors is an integer number (8089735039).

Almost surely, 2^16179470077 is an apocalyptic number.

It is an amenable number.

16179470077 is a deficient number, since it is larger than the sum of its proper divisors (1).

16179470077 is an equidigital number, since it uses as much as digits as its factorization.

16179470077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518616, while the sum is 49.

The spelling of 16179470077 in words is "sixteen billion, one hundred seventy-nine million, four hundred seventy thousand, seventy-seven".