18995606011 has 8 divisors (see below), whose sum is σ = 19246265280. Its totient is φ = 18745202112.

The previous prime is 18995605987. The next prime is 18995606017. The reversal of 18995606011 is 11060659981.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18995606011 - 2⁷ = 18995605883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18995606017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88281 + ... + 213973.

It is an arithmetic number, because the mean of its divisors is an integer number (2405783160).

Almost surely, 2^18995606011 is an apocalyptic number.

18995606011 is a deficient number, since it is larger than the sum of its proper divisors (250659269).

18995606011 is a wasteful number, since it uses less digits than its factorization.

18995606011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127685.

The product of its (nonzero) digits is 116640, while the sum is 46.

The spelling of 18995606011 in words is "eighteen billion, nine hundred ninety-five million, six hundred six thousand, eleven".