1103965117638 has 16 divisors (see below), whose sum is σ = 2213755913280. Its totient is φ = 367017426216.

The previous prime is 1103965117609. The next prime is 1103965117657. The reversal of 1103965117638 is 8367115693011.

It is a happy number.

It is a super-2 number, since 2×1103965117638² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 242734120 + ... + 242738667.

It is an arithmetic number, because the mean of its divisors is an integer number (138359744580).

Almost surely, 2^{1103965117638} is an apocalyptic number.

1103965117638 is an abundant number, since it is smaller than the sum of its proper divisors (1109790795642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1103965117638 is a wasteful number, since it uses less digits than its factorization.

1103965117638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485473171.

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 1103965117638 in words is "one trillion, one hundred three billion, nine hundred sixty-five million, one hundred seventeen thousand, six hundred thirty-eight".