16055308777 has 8 divisors (see below), whose sum is σ = 16449049512. Its totient is φ = 15661670400.

The previous prime is 16055308771. The next prime is 16055308783. The reversal of 16055308777 is 77780355061.

It is an interprime number because it is at equal distance from previous prime (16055308771) and next prime (16055308783).

It can be written as a sum of positive squares in 4 ways, for example, as 3724538841 + 12330769936 = 61029^2 + 111044^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16055308777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16055308777.

It is not an unprimeable number, because it can be changed into a prime (16055308771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363577 + ... + 405337.

It is an arithmetic number, because the mean of its divisors is an integer number (2056131189).

Almost surely, 2^16055308777 is an apocalyptic number.

It is an amenable number.

16055308777 is a deficient number, since it is larger than the sum of its proper divisors (393740735).

16055308777 is an equidigital number, since it uses as much as digits as its factorization.

16055308777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51179.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 16055308777 in words is "sixteen billion, fifty-five million, three hundred eight thousand, seven hundred seventy-seven".