1903085165228 has 12 divisors (see below), whose sum is σ = 3586583580720. Its totient is φ = 878346999312.

The previous prime is 1903085165171. The next prime is 1903085165231. The reversal of 1903085165228 is 8225615803091.

It is a super-2 number, since 2×1903085165228² (a number of 25 digits) contains 22 as substring.

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, 18298895768 + ... + 18298895871.

It is an arithmetic number, because the mean of its divisors is an integer number (298881965060).

Almost surely, 2^{1903085165228} is an apocalyptic number.

It is an amenable number.

1903085165228 is a deficient number, since it is larger than the sum of its proper divisors (1683498415492).

1903085165228 is a wasteful number, since it uses less digits than its factorization.

1903085165228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36597791656 (or 36597791654 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 1903085165228 in words is "one trillion, nine hundred three billion, eighty-five million, one hundred sixty-five thousand, two hundred twenty-eight".