1613888880663 has 16 divisors (see below), whose sum is σ = 2278867633920. Its totient is φ = 1012442261376.

The previous prime is 1613888880661. The next prime is 1613888880679. The reversal of 1613888880663 is 3660888883161.

It is not a de Polignac number, because 1613888880663 - 2¹ = 1613888880661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1613888880594 and 1613888880603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613888880661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2760483 + ... + 3293636.

It is an arithmetic number, because the mean of its divisors is an integer number (142429227120).

Almost surely, 2^{1613888880663} is an apocalyptic number.

1613888880663 is a deficient number, since it is larger than the sum of its proper divisors (664978753257).

1613888880663 is a wasteful number, since it uses less digits than its factorization.

1613888880663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059366.

The product of its (nonzero) digits is 63700992, while the sum is 66.

The spelling of 1613888880663 in words is "one trillion, six hundred thirteen billion, eight hundred eighty-eight million, eight hundred eighty thousand, six hundred sixty-three".