168519120903 has 12 divisors (see below), whose sum is σ = 278190294928. Its totient is φ = 96296640480.

The previous prime is 168519120899. The next prime is 168519120943. The reversal of 168519120903 is 309021915861.

168519120903 is a `hidden beast` number, since 1 + 6 + 8 + 519 + 120 + 9 + 0 + 3 = 666.

It is not a de Polignac number, because 168519120903 - 2² = 168519120899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168519120943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1337453278 + ... + 1337453403.

Almost surely, 2^168519120903 is an apocalyptic number.

168519120903 is a deficient number, since it is larger than the sum of its proper divisors (109671174025).

168519120903 is a wasteful number, since it uses less digits than its factorization.

168519120903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674906694 (or 2674906691 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 168519120903 in words is "one hundred sixty-eight billion, five hundred nineteen million, one hundred twenty thousand, nine hundred three".