1603105113878 has 8 divisors (see below), whose sum is σ = 2531218600920. Its totient is φ = 759365580240.

The previous prime is 1603105113871. The next prime is 1603105113899. The reversal of 1603105113878 is 8783115013061.

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

It is a super-2 number, since 2×1603105113878² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603105113871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21093488303 + ... + 21093488378.

It is an arithmetic number, because the mean of its divisors is an integer number (316402325115).

Almost surely, 2^{1603105113878} is an apocalyptic number.

1603105113878 is a deficient number, since it is larger than the sum of its proper divisors (928113487042).

1603105113878 is a wasteful number, since it uses less digits than its factorization.

1603105113878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42186976702.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 1603105113878 in words is "one trillion, six hundred three billion, one hundred five million, one hundred thirteen thousand, eight hundred seventy-eight".