16757781055 has 8 divisors (see below), whose sum is σ = 20110071744. Its totient is φ = 13405735200.

The previous prime is 16757781049. The next prime is 16757781113. The reversal of 16757781055 is 55018775761.

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

It is not a de Polignac number, because 16757781055 - 2⁷ = 16757780927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16757780993 and 16757781011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166170 + ... + 247240.

It is an arithmetic number, because the mean of its divisors is an integer number (2513758968).

Almost surely, 2^16757781055 is an apocalyptic number.

16757781055 is a deficient number, since it is larger than the sum of its proper divisors (3352290689).

16757781055 is an equidigital number, since it uses as much as digits as its factorization.

16757781055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122417.

The product of its (nonzero) digits is 2058000, while the sum is 52.

The spelling of 16757781055 in words is "sixteen billion, seven hundred fifty-seven million, seven hundred eighty-one thousand, fifty-five".