19161132115 has 4 divisors (see below), whose sum is σ = 22993358544. Its totient is φ = 15328905688.

The previous prime is 19161132071. The next prime is 19161132131. The reversal of 19161132115 is 51123116191.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19161132115 - 2¹⁹ = 19160607827 is a prime.

It is a Duffinian number.

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, 1916113207 + ... + 1916113216.

It is an arithmetic number, because the mean of its divisors is an integer number (5748339636).

Almost surely, 2^19161132115 is an apocalyptic number.

19161132115 is a deficient number, since it is larger than the sum of its proper divisors (3832226429).

19161132115 is an equidigital number, since it uses as much as digits as its factorization.

19161132115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832226428.

The product of its digits is 1620, while the sum is 31.

The spelling of 19161132115 in words is "nineteen billion, one hundred sixty-one million, one hundred thirty-two thousand, one hundred fifteen".