1616630663255 has 4 divisors (see below), whose sum is σ = 1939956795912. Its totient is φ = 1293304530600.

The previous prime is 1616630663237. The next prime is 1616630663267. The reversal of 1616630663255 is 5523660366161.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1616630663255 - 2⁶ = 1616630663191 is a prime.

It is a super-2 number, since 2×1616630663255² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161663066321 + ... + 161663066330.

It is an arithmetic number, because the mean of its divisors is an integer number (484989198978).

Almost surely, 2^{1616630663255} is an apocalyptic number.

1616630663255 is a deficient number, since it is larger than the sum of its proper divisors (323326132657).

1616630663255 is an equidigital number, since it uses as much as digits as its factorization.

1616630663255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323326132656.

The product of its (nonzero) digits is 3499200, while the sum is 50.

The spelling of 1616630663255 in words is "one trillion, six hundred sixteen billion, six hundred thirty million, six hundred sixty-three thousand, two hundred fifty-five".