19156105199 has 12 divisors (see below), whose sum is σ = 24063868752. Its totient is φ = 14926834560.

The previous prime is 19156105181. The next prime is 19156105219. The reversal of 19156105199 is 99150165191.

It is not a de Polignac number, because 19156105199 - 2¹⁶ = 19156039663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19156105169) 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, 11307362 + ... + 11309055.

It is an arithmetic number, because the mean of its divisors is an integer number (2005322396).

Almost surely, 2^19156105199 is an apocalyptic number.

19156105199 is a deficient number, since it is larger than the sum of its proper divisors (4907763553).

19156105199 is a wasteful number, since it uses less digits than its factorization.

19156105199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22616446 (or 22616435 counting only the distinct ones).

The product of its (nonzero) digits is 109350, while the sum is 47.

The spelling of 19156105199 in words is "nineteen billion, one hundred fifty-six million, one hundred five thousand, one hundred ninety-nine".